Decoherence by a spin thermal bath: Role of the spin-spin interactions

2007/11/15 by S. Yuan, Shengjun Yuan, M. I. Katsnelson +3 · 3 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Spectroscopy and Quantum Chemical Studies #quant-ph

paper · pdf · doi:10.1103/physrevb.77.184301

published as Phys. Rev. B 77, 184301 (2008) · submitted to PRB

arxiv created 2007/11/15 · openalex publication_date 2008/05/07 · arxiv updated 2011/01/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03

Abstract

We study the decoherence of two coupled spins that interact with a spin-bath environment. It is shown that the connectivity and the coupling strength between the spins in the environment are of crucial importance for the decoherence of the central system. Changing the connectivity or coupling strenghts changes the decoherence of the central system from Gaussian to exponential decay law.

Citations

• Quantum limit of decoherence: Environment induced superselection of energy eigenstates
• Decoherence, einselection, and the quantum origins of the classical

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