Oscillating entropy and spin precession in the ensemble of qubits interacting with thermal systems

Xiaoyu He, Zain H. Saleem and Vladimir I. Tsifrinovich

Physica A: Statistical Mechanics and its Applications, 2018, vol. 506, issue C, 888-892

Abstract: We present a simple model which allows us to explain the physical nature of the oscillating entropy. We consider an ensemble of qubits interacting with thermal two-level systems. The entropy of the qubits oscillates between zero and the value of entropy of the thermal systems. We show that the oscillations of the entropy can be clearly explained by the precession of the real or effective spins of the qubits.

Keywords: Qubits; Entropy; Quantum information; Quantum computation (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:506:y:2018:i:c:p:888-892

DOI: 10.1016/j.physa.2018.04.105

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