55 citations · 55 across the 1 of their papers we have counts for
6 papers
Protecting Spin Coherence in a Tunable Heisenberg Model
Emily J. Davis, Avikar Periwal, Eric S. Cooper +4
Using an ensemble of atoms in an optical cavity, we engineer a family of nonlocal Heisenberg Hamiltonians with continuously tunable anisotropy of the spin-spin couplings. We thus g…
Treelike interactions and fast scrambling with cold atoms
Gregory Bentsen, Tomohiro Hashizume, Anton S. Buyskikh +4
We propose an experimentally realizable quantum spin model that exhibits fast scrambling, based on non-local interactions which couple sites whose separation is a power of 2. By co…
Integrable and chaotic dynamics of spins coupled to an optical cavity
Gregory Bentsen, Ionut-Dragos Potirniche, Vir B. Bulchandani +5
We show that a class of random all-to-all spin models, realizable in systems of atoms coupled to an optical cavity, gives rise to a rich dynamical phase diagram due to the pairwise…
Photon-Mediated Spin-Exchange Dynamics of Spin-1 Atoms
Emily J. Davis, Gregory Bentsen, Lukas Homeier +2
We report direct observations of photon-mediated spin-exchange interactions in an atomic ensemble. Interactions extending over a distance of 500 microns are generated within a clou…
Fast scrambling on sparse graphs
Gregory Bentsen, Yingfei Gu, Andrew Lucas
Given a quantum many-body system with few-body interactions, how rapidly can quantum information be hidden during time evolution? The fast scrambling conjecture is that the time to…
One- and two-axis squeezing of atomic ensembles in optical cavities
Johannes Borregaard, Emily D. Davis, Greg S. Bentsen +2
The strong light-matter coupling attainable in optical cavities enables the generation of highly squeezed states of atomic ensembles. It was shown in [Phys. Rev. A 66, 022314 (2002…