The 1st morning session of the school went quite well. There were talks by Jun Ye (JILA) on control of light; how ultrafast laser pulses could be used to produce ultrastable frequency combs, and how different frequency scales, from UVU could be referenced to IR, a preview for his 2nd lecture tomorrow on controlling atomic matter with light. The 2nd talk was given by Pierre Meystre (replacing Mette Gaarde who could not be here) on cooling of optomechanical systems. This emerging subject of inquiry in AMO sciences has mushroomed over the last few years b/c a number of groups have succeeded in bringing the center of mass motion of nearly macroscopic objects to the quantum ground level. Pierre described what could be investigated with ground state objects, ala beyond ground state cooling.
The afternoon talks are now being given by Ivan Deutsch (UNM) and Han Pu (Rice). Han is giving a rigorous account of theory of laser cooling.
The students appear enthusiastic and engage the faculty with questions. The settings are beautiful- the mornings are quite and a bit chilly, and warming day hours which follow. The accommodations are first rate and comfortable.
Monday, January 9, 2012
Friday, November 25, 2011
A homonuclear molecule with a permanent dipole moment
Traditional wisdom tells us that homonuclear molecules cannot have a permanent dipole moment. However, when one of the atoms in a diatomic molecule is in a highly excited Rydberg state, the exchange symmetry between the two atoms is broken. In a new article published today in Science [1], ITAMP postdoc Seth Rittenhouse and scientist Hossein Sadeghpour in collaboration with groups from the Max-Planck-Institut für Physik komplexer Systeme and the University of Stuttgart, we describe the first direct measurement of a homonuclear, diatomic molecule with a permanent electric dipole moment.
Giant Rydberg molecules, first predicted over a decade ago [2], can bond courtesy of frequent scattering of the Rydberg electron off of a ground state atom. These molecules were later observed spectroscopically in s-wave dominated states [3]. However, because the electronic distribution was assumed to be isotropic, it was thought that this type of molecule would not have any polar behavior.
In our new work, we show that in truth a very small amount of the so-called "trilobite" state is admixed to the molecular electronic state resulting in appreciable dipole moments (on the order od 1 Debye). This prediction is born out by the observation of a linear Stark shift a small fields in high precision spectroscopic measurements of the Stark map of homonuclear rubidium Rydberg molecules.
(a) The electron density for a Giant homonuclear molecule is show in cylindrical coordinates. (b) The trilobite-like electron density is shown after the isotropic amplitude has been subtracted. In both figures the Rb Rydberg core is at z = ρ = 0, the while the ground state atom is located z = 1900 atomic units (figure from Ref. [1]).
References:
[1] W. Li, T. Pohl, J. M. Rost, S. T. Rittenhouse, H. R. Sadeghpour, J. Nipper, B. Butscher, J. B. Balewski, V. Bendkowsky, R. Low and T. Pfau, Science 334, 1110 (2011).
[2] H. R. Sadeghpour, A. S. Dickinson and C. H. Greene, Phys. Rev Lett. 85, 2458 (2000).
[3] V. Bendkowsky et al., Nature 458, 1005 (2009).
Giant Rydberg molecules, first predicted over a decade ago [2], can bond courtesy of frequent scattering of the Rydberg electron off of a ground state atom. These molecules were later observed spectroscopically in s-wave dominated states [3]. However, because the electronic distribution was assumed to be isotropic, it was thought that this type of molecule would not have any polar behavior.
In our new work, we show that in truth a very small amount of the so-called "trilobite" state is admixed to the molecular electronic state resulting in appreciable dipole moments (on the order od 1 Debye). This prediction is born out by the observation of a linear Stark shift a small fields in high precision spectroscopic measurements of the Stark map of homonuclear rubidium Rydberg molecules.
(a) The electron density for a Giant homonuclear molecule is show in cylindrical coordinates. (b) The trilobite-like electron density is shown after the isotropic amplitude has been subtracted. In both figures the Rb Rydberg core is at z = ρ = 0, the while the ground state atom is located z = 1900 atomic units (figure from Ref. [1]).References:
[1] W. Li, T. Pohl, J. M. Rost, S. T. Rittenhouse, H. R. Sadeghpour, J. Nipper, B. Butscher, J. B. Balewski, V. Bendkowsky, R. Low and T. Pfau, Science 334, 1110 (2011).
[2] H. R. Sadeghpour, A. S. Dickinson and C. H. Greene, Phys. Rev Lett. 85, 2458 (2000).
[3] V. Bendkowsky et al., Nature 458, 1005 (2009).
Thursday, September 1, 2011
Watching correlated electron motion with attosecond pulses
In a recent paper published in Physical Review Letters, we propose a new approach to observe the correlated motion of two electrons on the attosecond timescale. In this pump-probe setup, two identical extreme-ultraviolet light pulses with a duration of just a few hundred attoseconds (1 as = 10-18 s) are sent onto a helium atom. We expect that with the continuing development of intense attosecond
pulses, this kind of experiment could be performed in the next few
years. Most current experiments use a strong
few-femtosecond infrared field in combination with an
extreme-ultraviolet attosecond pulse. These rely on highly nonlinear
effects
to attain subcycle time resolution within the infrared pulse. In contrast
to such setups, the wave packet dynamics are not modified by the
fields when using two extreme ultraviolet pulses. The proposed measurement would thus be one of the first experiments to directly observe
field-free correlated electron dynamics in atoms on their natural
attosecond timescale.
In our proposed setup, the first (pump) pulse excites a coherent wave packet of doubly excited states. These are prototypical examples of highly correlated states where the two electrons influence each other strongly. After letting this wave packet evolve for some time, the second (probe) pulse ejects both electrons. By repeating the sequence many times with different time delays between the two pulses, a "movie" of the doubly excited wave packet can be created frame by frame.
In the paper, we show that by measuring only one of the two ejected electrons and counting only those electrons within a specific energy interval, it is possible to gain direct access to an observable related to the dynamics of both electrons: the distance between them at the moment of ionization.
There is one further problem to overcome: Both steps in the pump-probe sequence only occur with small probabilities. Both in double excitation (pump) and in double ionization (probe), absorption of one photon has to lead to a two-electron transition. As a photon only "talks" to one electron directly, these two-electron transitions are quite unlikely. We show that one can exploit quantum interference to increase the magnitude of the signal: Since the pump and probe pulses are identical, absorption of two photons from just one of them leads to the same final states as absorption of one photon from each pulse. This "direct" pathway, where each photon ejects one electron, is orders of magnitude more likely than the more interesting pump-probe pathway. However, it does not represent an incoherent background that masks the signal of interest. Instead, it provides a coherent reference pathway that the pump-probe pathway through the doubly excited states interferes with. The amplitude of the interference term is about a hundred times larger than the magnitude of the pump-probe signal by itself, thus providing an experimentally more accessible signal.
Reference: J. Feist, S. Nagele, C. Ticknor, B. I. Schneider, L. A. Collins, and J. Burgdörfer, Phys. Rev. Lett. 107, 093005 (2011)
Tuesday, August 30, 2011
What is causing trapped ions to heat up? In an ion trap, electrodes (shown here in gold) produce electric fields that confine the ion (green sphere) to a small volume. Randomly fluctuating dipoles on the surface of these electrodes generate electric field noise. The dipoles form when single atoms adsorb on the metal surface. Vibrations (phonons) in the metal cause the dipoles (purple arrows) to fluctuate. Ions trapped in the vicinity of the metal surface sense these electric field changes and heat up.
Viewpoint
Physics 4, 66 (2011)DOI: 10.1103/Physics.4.66
All that is gold does not glitter
Department of Physics, University of California, Berkeley, CA 94720-7300, USA
Published August 22, 2011
A microscopic model offers new insight into a pernicious source of electric field noise in ion traps.
A Viewpoint on:
Microscopic model of electric-field-noise heating in ion traps
A. Safavi-Naini, P. Rabl, P. F. Weck, and H. R. Sadeghpour
Phys. Rev. A 84, 023412 (2011) – Published August 22, 2011
Download PDF (free)
Friday, August 26, 2011
Artificial Atoms Can Do More Than Atoms
In a recently published work in Physical Review Letters, we have shown that artificial atoms made of a large number of single atoms can exhibit superior properties compared to their individual counterparts. Our results provide a way to novel applications in photonic devices used for quantum communication and quantum metrology.
In our work, we investigate an ensemble of strongly interacting atoms as found in Rydberg atoms or semiconductor quantum dots. The interaction of these systems with light can be described by an artificial atom with only two energy levels. However, when applying controlled noise to the system, this approximation breaks down and additional energy levels have to be taken into account. If a light beam is then sent through the system, these additional levels result in exactly one photon being removed from the beam. This single photon absorption process can be used in number resolving photon counters or for the creation of non-classical states of light.
Reference: J. Honer, R. Löw, H. Weimer, T. Pfau, H. P. Büchler, Phys. Rev. Lett. 107, 093601 (2011).
See also: Synopsis in Physics
In our work, we investigate an ensemble of strongly interacting atoms as found in Rydberg atoms or semiconductor quantum dots. The interaction of these systems with light can be described by an artificial atom with only two energy levels. However, when applying controlled noise to the system, this approximation breaks down and additional energy levels have to be taken into account. If a light beam is then sent through the system, these additional levels result in exactly one photon being removed from the beam. This single photon absorption process can be used in number resolving photon counters or for the creation of non-classical states of light.
Reference: J. Honer, R. Löw, H. Weimer, T. Pfau, H. P. Büchler, Phys. Rev. Lett. 107, 093601 (2011).
See also: Synopsis in Physics
Monday, June 6, 2011
ITAMP 2011 DAMOP presentations (in Atlanta, GA)
Babb
10:30 AM–12:30 PM, Tuesday, June 14, 2011
Room: A705
Chair: Ed Eyler, University of Connecticut
Room: A705
Chair: Ed Eyler, University of Connecticut
Abstract: B5.00007 : Partial derivatives of eigenvalues without finite differences
11:42 AM–11:54 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147020
Babb
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Abstract: E1.00059 : Long-Range Three-Body Dispersion Interactions
http://meetings.aps.org/Meeting/DAMOP11/Event/147137Room: Atrium Ballroom BC
Abstract: E1.00059 : Long-Range Three-Body Dispersion Interactions
Capogrosso
8:00 AM–10:00 AM, Wednesday, June 15, 2011
Room: A704
Room: A704
Chair: Nathan Gemelke, Pennsylvania State University
Abstract: H4.00003 : Pair-Supersolidity of Dipoles in a Bilayer System
8:42 AM–8:54 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147294
Capogrosso
10:30 AM–12:30 PM, Thursday, June 16, 2011
Room: A602
Room: A602
Chair: Markus Greiner, Harvard University
Abstract: N2.00005 : Quantum magnetic phases in harmonically trapped two-component bosons
11:18 AM–11:30 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147674
Demler
10:30 AM–12:30 PM, Tuesday, June 14, 2011
Room: A704
Chair: Benjamin Lev, University of Illinois at Urbana-Champaign
Room: A704
Chair: Benjamin Lev, University of Illinois at Urbana-Champaign
Abstract: B4.00005 : Quantum Magnetism with Polar Alkali Dimers
11:54 AM–12:06 PMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147010Demler
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Abstract: E1.00012 : Emulating Quantum Magnetism and t--J Models in Systems of Ultracold Polar Molecules
http://meetings.aps.org/Meeting/DAMOP11/Event/147090Abstract: E1.00012 : Emulating Quantum Magnetism and t--J Models in Systems of Ultracold Polar Molecules
Demler
0:30 AM–12:30 PM, Thursday, June 16, 2011
Room: A705
Chair: Josh Zirbel, University of Illinois at Urbana-Champaign
Abstract: N5.00003 : Non-Equilibrium Dynamics of 1d Bose Gases Studied via Noise Distributions
10:54 AM–11:06 AM
http://meetings.aps.org/Meeting/DAMOP11/Event/147699
Demler
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A705
Chair: Alex Kuzmich, Georgia Institute of Technology
Room: A705
Chair: Alex Kuzmich, Georgia Institute of Technology
Abstract: T5.00006 : Robust optical delay lines via topological protection
9:00 AM–9:12 AM http://meetings.aps.org/Meeting/DAMOP11/Event/147977Demler
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A706
Chair: Georg Raithel, University of Michigan
Room: A706
Chair: Georg Raithel, University of Michigan
Abstract: T6.00007 : Majorana Fermions in Cold Atom Quantum Wires
9:48 AM–10:00 AM http://meetings.aps.org/Meeting/DAMOP11/Event/147989Feist
2:00 PM–4:00 PM, Wednesday, June 15, 2011
Room: A705
Room: A705
Chair: Arvinder Sandhu, University of ArizonaAbstract: K5.00003 : Attosecond pump-probe of doubly excited states in helium
2:24 PM–2:36 PM http://meetings.aps.org/Meeting/DAMOP11/Event/147406Feist
2:00 PM–4:00 PM, Thursday, June 16, 2011
Room: A602
Room: A602
Chair: David Reis, SLAC and Standford University
Abstract: P2.00003 : Time-resolved photoemission by attosecond streaking: extraction of time information
2:42 PM–2:54 PMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147726
Gacesa
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A601
Room: A601
Chair: Steven Manson, Georgia State University
Abstract: T1.00006 : Energy transfer in collisions of atmospheric O and H$_2$
9:36 AM–9:48 AM
http://meetings.aps.org/Meeting/DAMOP11/Event/147948Kharchenko
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A601
Room: A601
Chair: Steven Manson, Georgia State University
Abstract: T1.00006 : Energy transfer in collisions of atmospheric O and H$_2$
9:36 AM–9:48 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147948
Kuznetsova
8:00 AM–10:00 AM, Thursday, June 16, 2011
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Abstract: M5.00007 : Cluster state generation using long-range interactions
9:12 AM–9:24 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147652Kuznetsova
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
http://meetings.aps.org/Meeting/DAMOP11/Event/147915Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
Loreau
10:30 AM–12:30 PM, Wednesday, June 15, 2011
Room: A703
Room: A703
Chair: Francis Robicheaux, Auburn University
Abstract: J3.00009 : Isotope effect on charge transfer in collisions of H with He$^+$ and He$^{2+}$
12:06 PM–12:18 PMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147340
Lukin
10:30 AM–12:30 PM, Tuesday, June 14, 2011Room: A703
Chair: Gretchen Campbell, JQI and NIST
Abstract: B3.00009 : Sub-wavelength optical trapping and manipulation using far-field optics
12:06 PM–12:18 PM http://meetings.aps.org/Meeting/DAMOP11/Event/147003
Lukin
10:30 AM–12:30 PM, Tuesday, June 14, 2011
Room: A704
Room: A704
Chair: Benjamin Lev, University of Illinois at Urbana-Champaign
Abstract: B4.00005 : Quantum Magnetism with Polar Alkali Dimers
11:54 AM–12:06 PM http://meetings.aps.org/Meeting/DAMOP11/Event/147010Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00012 : Emulating Quantum Magnetism and t--J Models in Systems of Ultracold Polar Molecules
http://meetings.aps.org/Meeting/DAMOP11/Event/147090Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00096 : Towards room temperature magnetic sensing of a single electron spin in biological systems
http://meetings.aps.org/Meeting/DAMOP11/Event/147174
Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00042 : A Nanoplasmonic Lattice for Quantum Simulation with Cold Atoms
http://meetings.aps.org/Meeting/DAMOP11/Event/147120Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00097 : All optical real-time measurement and preparation of nuclear spin states around an individual NV center in diamond
http://meetings.aps.org/Meeting/DAMOP11/Event/147175Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00098 : Measurement-Based Nuclear Spin Cooling in NV Centers
http://meetings.aps.org/Meeting/DAMOP11/Event/147176
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00099 : Sensing thermal motion of a mechanical resonator using a single spin qubit in diamond
http://meetings.aps.org/Meeting/DAMOP11/Event/147177Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00100 : Long-lived solid-state room-temperature quantum memory
http://meetings.aps.org/Meeting/DAMOP11/Event/147178 Lukin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00148 : Topologically Protected Quantum State Transfer
http://meetings.aps.org/Meeting/DAMOP11/Event/147226
Lukin
4 :00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Abstract: E1.00152 : Coupling of NV centers to microscopic cavities
http://meetings.aps.org/Meeting/DAMOP11/Event/147230
Lukin
8:00 AM–10:00 AM, Wednesday, June 15, 2011
Room: A602
Chair: Tatjana Curcic, Air Force Office of Scientific Research
Room: A602
Chair: Tatjana Curcic, Air Force Office of Scientific Research
Abstract: H2.00001 : Optics with Nitrogen Vacancy Centers in Diamond
8:00 AM–8:30 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147273
Lukin
8:00 AM–10:00 AM, Wednesday, June 15, 2011
Room: A602
Chair: Tatjana Curcic, Air Force Office of Scientific Research
Room: A602
Chair: Tatjana Curcic, Air Force Office of Scientific Research
Abstract: H2.00002 : Magnetic field imaging with NV ensembles
8:30 AM–8:42 AM http://meetings.aps.org/Meeting/DAMOP11/Event/147274Lukin
4:00 PM–4:00 PM, Wednesday, June 15, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: L1.00108 : Hybrid Devices for Cavity QED in Solid State Systems
http://meetings.aps.org/Meeting/DAMOP11/Event/147538Lukin
8:00 AM–10:00 AM, Thursday, June 16, 2011
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Abstract: M5.00004 : Long-range quantum gates using external symmetry breaking
8:36 AM–8:48 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147649
Lukin
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00121 : Nanowire Plasmon Resonators
http://meetings.aps.org/Meeting/DAMOP11/Event/147888Lukin
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00137 : A nanoscale quantum interface for single atoms
Room: Atrium Ballroom BC
Abstract: Q1.00137 : A nanoscale quantum interface for single atoms
http://meetings.aps.org/Meeting/DAMOP11/Event/147905
Lukin
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A703
Chair: Steve Rolston, JQI and University of Maryland
Room: A703
Chair: Steve Rolston, JQI and University of Maryland
Abstract: T3.00010 : Dark-State Polaritons with Rydberg Interactions
9:48 AM–10:00 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147965Lukin
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A705
Chair: Alex Kuzmich, Georgia Institute of Technology
Room: A705
Chair: Alex Kuzmich, Georgia Institute of Technology
Abstract: T5.00006 : Robust optical delay lines via topological protection
9:00 AM–9:12 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147977Lukin
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A706
Chair: Georg Raithel, University of Michigan
Chair: Georg Raithel, University of Michigan
Abstract: T6.00007 : Majorana Fermions in Cold Atom Quantum Wires
9:48 AM–10:00 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147989Mathy
8:00 AM–10:00 AM, Wednesday, June 15, 2011
Room: A601
Room: A601
Chair: Ken O'Hara, Pennsylvania State University
Abstract: H1.00003 : Universal features of strongly polarized mass imbalanced fermi gases
8:24 AM–8:36 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147264
Rittenhouse
4:00 PM–4:00 PM, Wednesday, June 15, 2011
Room: Atrium Ballroom BC
Abstract: L1.00004 : A Dielectric Superfluid of Polar Molecules
http://meetings.aps.org/Meeting/DAMOP11/Event/147434Room: Atrium Ballroom BC
Abstract: L1.00004 : A Dielectric Superfluid of Polar Molecules
Rittenhouse
2:00 PM–4:00 PM, Thursday, June 16, 2011
Room: A706
Room: A706
Chair: Doerte Blume, Washington State UniversityAbstract: P6.00003 : Probing universal few-body dynamics
3:00 PM–3:30 PMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147764
Rittenhouse
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00008 : Ultralong-range polyatomic Rydberg molecules formed by a polar perturber
http://meetings.aps.org/Meeting/DAMOP11/Event/147774Room: Atrium Ballroom BC
Abstract: Q1.00008 : Ultralong-range polyatomic Rydberg molecules formed by a polar perturber
Rittenhouse
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
http://meetings.aps.org/Meeting/DAMOP11/Event/147915
Sadeghpour
4:00 PM–4:00 PM, Wednesday, June 15, 2011Room: Atrium Ballroom BC
Abstract: L1.00151 : Self-broadening of helium $^1D$ and $^3D$ lines
Abstract: L1.00151 : Self-broadening of helium $^1D$ and $^3D$ lines
http://meetings.aps.org/Meeting/DAMOP11/Event/147582
Sadeghpour
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00008 : Ultralong-range polyatomic Rydberg molecules formed by a polar perturber
Room: Atrium Ballroom BC
Abstract: Q1.00008 : Ultralong-range polyatomic Rydberg molecules formed by a polar perturber
http://meetings.aps.org/Meeting/DAMOP11/Event/147774
Sadeghpour
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
http://meetings.aps.org/Meeting/DAMOP11/Event/147915
Sadeghpour
10:30 AM–12:30 PM, Wednesday, June 15, 2011
Room: A601
Chair: Jake Taylor, JQI and NISTAbstract: J1.00003 : An ab-initio model of anomalous heating in planar ion traps
10:54 AM–11:06 AMRoom: A601
Chair: Jake Taylor, JQI and NISTAbstract: J1.00003 : An ab-initio model of anomalous heating in planar ion traps
http://meetings.aps.org/Meeting/DAMOP11/Event/147318
Weimer
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Abstract: E1.00148 : Topologically Protected Quantum State Transfer
http://meetings.aps.org/Meeting/DAMOP11/Event/147226Room: Atrium Ballroom BC
Abstract: E1.00148 : Topologically Protected Quantum State Transfer
Weimer
8:00 AM–10:00 AM, Thursday, June 16, 2011
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Abstract: M5.00004 : Long-range quantum gates using external symmetry breaking
8:36 AM–8:48 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147649
Yelin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00097 : All optical real-time measurement and preparation of nuclear spin states around an individual NV center in diamond
http://meetings.aps.org/Meeting/DAMOP11/Event/147175Yelin
4:00 PM–4:00 PM, Tuesday, June 14, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: E1.00098 : Measurement-Based Nuclear Spin Cooling in NV Centers
http://meetings.aps.org/Meeting/DAMOP11/Event/147176Yelin
8:00 AM–10:00 AM, Wednesday, June 15, 2011
Room: A703
Chair: Ivan Deutsch, University of New Mexico
Room: A703
Chair: Ivan Deutsch, University of New Mexico
Abstract: H3.00006 : Superradiance in spin-J atoms: Effects of multiple atomic levels
9:00 AM–9:12 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147286
Yelin
8:00 AM–10:00 AM, Thursday, June 16, 2011
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Room: A705
Chair: Emily Edwards, JQI and University of Maryland
Abstract: M5.00007 : Cluster state generation using long-range interactions
9:12 AM–9:24 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147652
Yelin
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: Q1.00136 : On nearest-neighbor interactions of cold polar molecules in two-color arrays
http://meetings.aps.org/Meeting/DAMOP11/Event/147904Yelin
4:00 PM–4:00 PM, Thursday, June 16, 2011
Room: Atrium Ballroom BC
Room: Atrium Ballroom BC
Abstract: Q1.00147 : Rydberg molecules mediated interaction between polar molecules: a new tool to realize two-qubit gates
http://meetings.aps.org/Meeting/DAMOP11/Event/147915Zhang
4:00 PM–4:00 PM, Wednesday, June 15, 2011
Room: Atrium Ballroom BC
Abstract: L1.00151 : Self-broadening of helium $^1D$ and $^3D$ lines
http://meetings.aps.org/Meeting/DAMOP11/Event/147582Room: Atrium Ballroom BC
Abstract: L1.00151 : Self-broadening of helium $^1D$ and $^3D$ lines
Zhang
8:00 AM–10:00 AM, Friday, June 17, 2011
Room: A601
Room: A601
Chair: Steven Manson, Georgia State University
Abstract: T1.00006 : Energy transfer in collisions of atmospheric O and H$_2$
9:36 AM–9:48 AMhttp://meetings.aps.org/Meeting/DAMOP11/Event/147948
Wednesday, February 9, 2011
talk by Swati Singh
Swati is talking about hybrid approaches to quantum mechanical cooling, in this case to a BEC as the medium. Phase contrast imaging was used by Stamper-Kurn and Mukund Vengalattore to major the local spin domains in BEC. She is studying the feasibility of measuring the backaction.
Photon scattering losses when objects are levitated to minimize environmental losses, enter the picture. Dipole scattering is not the major issue, as the losses are mostly in the forward direction. Motional squeezing in cantilevers with dipole-dipole interaction, is being discussed. The non-linearity of dipolar interaction is used.
Photon scattering losses when objects are levitated to minimize environmental losses, enter the picture. Dipole scattering is not the major issue, as the losses are mostly in the forward direction. Motional squeezing in cantilevers with dipole-dipole interaction, is being discussed. The non-linearity of dipolar interaction is used.
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