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Experimental Trapped-ion Quantum Simulation of the Kibble-Zurek dynamics in momentum space.

ABSTRACT: The Kibble-Zurek mechanism is the paradigm to account for the nonadiabatic dynamics of a system across a continuous phase transition. Its study in the quantum regime is hindered by the requisite of ground state cooling. We report the experimental quantum simulation of critical dynamics in the transverse-field Ising model by a set of Landau-Zener crossings in pseudo-momentum space, that can be probed with high accuracy using a single trapped ion. We test the Kibble-Zurek mechanism in the quantum regime in the momentum space and find the measured scaling of excitations is in accordance with the theoretical prediction.

SUBMITTER: Cui JM

PROVIDER: S-EPMC5025896 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Experimental Trapped-ion Quantum Simulation of the Kibble-Zurek dynamics in momentum space.

Cui Jin-Ming JM Huang Yun-Feng YF Wang Zhao Z Cao Dong-Yang DY Wang Jian J Lv Wei-Min WM Luo Le L Del Campo Adolfo A Han Yong-Jian YJ Li Chuan-Feng CF Guo Guang-Can GC

Scientific reports 20160916

The Kibble-Zurek mechanism is the paradigm to account for the nonadiabatic dynamics of a system across a continuous phase transition. Its study in the quantum regime is hindered by the requisite of ground state cooling. We report the experimental quantum simulation of critical dynamics in the transverse-field Ising model by a set of Landau-Zener crossings in pseudo-momentum space, that can be probed with high accuracy using a single trapped ion. We test the Kibble-Zurek mechanism in the quantum ...[more]

PMID: 27633087

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