Effective Hamiltonians for Discrete Time Crystals

被引：0
|
作者：
Kozin, Valerii K. [1 ,2 ]
Kyriienko, Oleksandr [2 ,3 ,4 ,5 ]
机构：
[1] Univ Iceland, Inst Sci, Dunhagi 3, IS-107 Reykjavik, Iceland
[2] ITMO Univ, Kronverkskiy Prospekt 49, St Petersburg 197101, Russia
[3] Univ Exeter, Dept Phys & Astron, Stocker Rd, Exeter EX4 4QL, Devon, England
[4] KTH Royal Inst Technol, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
[5] Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
来源：
FIFTH INTERNATIONAL CONFERENCE ON QUANTUM TECHNOLOGIES (ICQT-2019) | 2020年 / 2241卷
基金：
俄罗斯科学基金会;
关键词：
D O I：
10.1063/5.0011485
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We analyze the effective Hamiltonian for the 2T discrete time crystal (2T-DTC or DTC). This effective Hamiltonian is given by spin 1/2 many-body Hamiltonian which includes all-to-all coupling terms, thus being of infinite range. We describe the possible structure of the Hamiltonian, including many-body localized version which prevents thermalization. Finally, we show how the DTC melts when symmetry breaking terms are added.
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页数：4
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