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Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas

Journal Article · · Physical Review Letters
Here, we report on the realization of long-range Ising interactions in a cold gas of cesium atoms by Rydberg dressing. The interactions are enhanced by coupling to Rydberg states in the vicinity of a Förster resonance. We characterize the interactions by measuring the mean-field shift of the clock transition via Ramsey spectroscopy, observing one-axis twisting dynamics. We furthermore emulate a transverse-field Ising model by periodic application of a microwave field and detect dynamical signatures of the paramagnetic-ferromagnetic phase transition. Our results highlight the power of optical addressing for achieving local and dynamical control of interactions, enabling prospects ranging from investigating Floquet quantum criticality to producing tunable-range spin squeezing.
Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
Serbian Foundation for Talented Youth; US Army Research Office (ARO); US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019174
OSTI ID:
1803602
Alternate ID(s):
OSTI ID: 1599481
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 124; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Implementation of Cavity Squeezing of a Collective Atomic Spin text January 2009
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Deterministic entanglement of two neutral atoms via Rydberg blockade text January 2010
Spin squeezing in a Rydberg lattice clock text January 2013
Binding potentials and interaction gates between microwave-dressed Rydberg atoms text January 2014
Optical transport and manipulation of an ultracold atomic cloud using focus-tunable lenses text January 2014
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Anomalous broadening in driven dissipative Rydberg systems text January 2015
Accessing Rydberg-dressed interactions using many-body Ramsey dynamics text January 2015
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Spontaneous avalanche dephasing in large Rydberg ensembles text January 2017
Floquet Quantum Criticality text January 2018
Photon-Mediated Spin-Exchange Dynamics of Spin-1 Atoms text January 2018
Quantum gas microscopy of Rydberg macrodimers text January 2018
Variational spin-squeezing algorithms on programmable quantum sensors text January 2019
Inducing an optical Feshbach resonance via stimulated Raman coupling text January 2004
Prethermal quantum many-body Kapitza phases of periodically driven spin systems text January 2019

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