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Title:

Dynamical Quantum Phase Transitions in Spin Chains with Long-Range Interactions: Merging Different Concepts of Nonequilibrium Criticality

Document type:
Zeitschriftenaufsatz
Author(s):
Žunkovič, Bojan; Heyl, Markus; Knap, Michael; Silva, Alessandro
Abstract:
We theoretically study the dynamics of a transverse-field Ising chain with power-law decaying interactions characterized by an exponent α, which can be experimentally realized in ion traps. We focus on two classes of emergent dynamical critical phenomena following a quantum quench from a ferromagnetic initial state: The first one manifests in the time-averaged order parameter, which vanishes at a critical transverse field. We argue that such a transition occurs only for long-range interactions α...     »
Journal title:
Physical Review Letters 2018-03
Year:
2018
Journal volume:
120
Journal issue:
13
Fulltext / DOI:
doi:10.1103/physrevlett.120.130601
Publisher:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Date of publication:
27.03.2018
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