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

被引：85

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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