Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session T66: Quantum Gases II
11:30 AM–2:18 PM,
Thursday, March 9, 2023
Room: Room 413
Sponsoring
Unit:
DAMOP
Chair: Mengxin Du, University of Texas at Dallas
Abstract: T66.00001 : Dipolar Interacting Quantum Matter in Synthetic Dimensions
11:30 AM–11:42 AM
Presenter:
Sohail Dasgupta
(Rice University)
Authors:
Sohail Dasgupta
(Rice University)
Chunhan Feng
(Flatiron Institute)
Richard T Scalettar
(University of California, Davis)
Kaden Hazzard
(Rice)
In this talk, I will present the many-body physics of atoms and molecules combining internal synthetic lattices with real-space microtrap arrays. In this setup, the atoms/molecules interact via dipole-dipole angular-momentum-exchange interactions, and I focus on the case of uniform synthetic tunneling rates. Through a combination of mean-field theory and quantum Monte Carlo results, I will show that the interplay between the dipole-dipole interaction and synthetic tunneling gives rise to several different phases, symmetry-breaking and otherwise.
One particularly interesting phase has atoms localized in the synthetic dimension, forming a quantum string or membrane that fluctuates in a higher dimensional space. We find tri-critical points on the thermal phase boundaries between this string phase and a disordered gas when the finite size of the synthetic dimension is six sites or larger.
I will conclude with some open questions, experimental challenges and motivate other quantum systems that can be engineered with ultracold atomic or molecular synthetic dimension platforms that are hard to realize elsewhere.
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