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Open Quantum Systems Decoherence Quantum Simulation

Negative differential conductivity in Heisenberg XXZ chain far from equilibrium

arXiv

Authors: Tomaz Prosen

Year

2007

Paper ID

50542

Status

Preprint

Abstract Read

~2 min

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Abstract

Negative differential conductivity is reported for the far from equilibrium quantum spin transport in the insulating regime J_x < J_z of finite Heisenberg XXZ spin 1/2 chains. The phenomenon is reproduced analytically for small chains of N=4 spins and further analyzed numerically, for up to N=16, using an efficient pure-state simulation with stochastic spin baths.

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Negative differential conductivity is reported for the far from equilibrium quantum spin transport in the insulating regime Jx < Jz of finite Heisenberg XXZ spin 1/2 chains.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0704.2252 [2] arXiv https://arxiv.org/abs/0704.2252 [3] Publisher https://arxiv.org/abs/0704.2252

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