The effect of random coupling coefficients on decoherence

TL;DR

This paper investigates how randomness in coupling coefficients within the interaction Hamiltonian influences decoherence, demonstrating through simulations that such randomness significantly enhances decoherence efficiency and warrants further physical interpretation.

Contribution

It introduces the analysis of random coupling coefficients' impact on decoherence, highlighting their role in improving decoherence efficiency in spin-bath models.

Findings

Random coupling coefficients greatly improve decoherence efficiency

Simulation results support the significance of randomness in decoherence

Physical implications of randomness in decoherence are discussed

Abstract

The aim of this letter is to analyze the effect on decoherence of the randomness of the coupling coefficients involved in the interaction Hamiltonian. By studying the spin-bath model with computer simulations, we show that such randomness greatly improves the "efficiency" of decoherence and, then, its physical meaning deserves to be considered.