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

被引：78
作者：
Borish, V. [1 ]
Markovic, O. [2 ]
Hines, J. A. [1 ]
Rajagopal, S. V. [2 ]
Schleier-Smith, M. [2 ]
机构：
[1] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 06期
关键词：
BLOCKADE;
D O I：
10.1103/PhysRevLett.124.063601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 Forster 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.
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页数：6
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