Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session Z02: Hot TopicsInvited Live Streamed
|
Hide Abstracts |
Chair: Ana Rey, JILA Room: Ballroom 111 A |
Friday, June 9, 2023 10:30AM - 11:00AM |
Z02.00001: Quantum Droplet Meta-Materials Invited Speaker: Tin-Lun Ho The quantum droplets in binary mixtures of Bose-Einstein Condensates [1,2,3] are dramatic demonstrations of the effects of quantum fluctuations at macroscopic level. It was pointed out by D. Petrov [4] that these fluctuations (of the kind of Lee-Huang-Yang [5]) are able to prevent the collapse of a binary mixture with attractive mean-field mutual interaction, and stabilize the system in a self-bound droplet. This self-bound property immediate accommodates elastic deformations. Here, we show that this elasticity will lead to a whole host of new self-bound structures when a quantum droplet interacts with another quantum gas or is acted on by various optical and magnetic potentials [6]. These new structures include media of various connectivity (i.e. genus), new super-solids, and devices for measuring the equation of state of other quantum gases. They are the solutions of the generalized Gross-Pitaevskii equation of these systems, which contain many new topological excitations and macroscopic quantum phenomena. The creation of new self-bound structures with increasingly complexity from quantum droplets is similar to the creation of meta-materials from simple solid-state units. |
Friday, June 9, 2023 11:00AM - 11:30AM |
Z02.00002: A new bound on the electron's electric dipole moment Invited Speaker: Jun Ye We will present the most precise measurement of the electron’s electric dipole moment using electron |
Friday, June 9, 2023 11:30AM - 12:00PM |
Z02.00003: Orbital interactions between strongly confined fermions Invited Speaker: Joseph H Thywissen Exchange-antisymmetric pair wavefunctions in fermionic systems hold the promise of new types of quantum simulations, topological quantum gates, and exotic few-body states. However, p-wave and other antisymmetric interactions are weak in naturally occurring systems, and their enhancement via Feshbach resonances in ultracold systems has been limited by three-body loss. Here we revisit p-wave interactions in the presence of strong confinement. In a first scenario, we measure the interaction energy of pairs of atoms isolated in a deep optical lattice. We demonstrate that interactions can be widely tuned, even up to the unitarity, where the p-wave scattering volume diverges. In a second scenario, we study the two-body correlation strength of quasi-one-dimensional (q1D) ensembles of spin-polarized fermionic potassium. Surprisingly, we find a scattering channel that has even particle-exchange parity along the q1D axis. These emergent s-wave collisions are enabled by orbital singlet wave functions in the transverse directions, which also confer high-momentum components to low-energy q1D collisions. I discuss prospects for new combinations of dimensionality and scattering symmetry. |
Friday, June 9, 2023 12:00PM - 12:30PM |
Z02.00004: Generation of optical Schrödinger "cat" and entangled states using strongly laser driven atoms Invited Speaker: Paraskevas Tzallas Strong laser physics (SLP) and quantum-optics (QO), are two research directions founded on the classical and quantum description of the electromagnetic radiation, respectively. SLP is based on the use of high power lasers and has led to fascinating discoveries ranging from particle acceleration to attosecond science. On the other hand, QO which largely relies on the use of low photon number sources, has opened the way for groundbreaking achievements in quantum technology (QT) advancing studies ranging from fundamental test of quantum |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700