期刊
PHYSICAL REVIEW E
卷 89, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.89.062110
关键词
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资金
- NSF [DMR-1147430]
- CONACyT, Mexico
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1147430] Funding Source: National Science Foundation
We study one-dimensional lattices of interacting spins-1/2 and show that the effects of quenching the amplitude of a local magnetic field applied to a single site of the lattice can be comparable to the effects of a global perturbation applied instantaneously to the entire system. Both quenches take the system to the chaotic domain, the energy distribution of the initial states approaches a Breit-Wigner shape, the fidelity (Loschmidt echo) decays exponentially, and thermalization becomes viable.
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