Related papers: Heat bath in a quantum circuit

Heat bath in a quantum circuit

URL: http://arxiv.org/abs/2310.01246v1
Date: Mon, 2 Oct 2023 14:31:15 GMT
Title: Heat bath in a quantum circuit
Authors: Jukka P. Pekola and Bayan Karimi
Abstract summary: We discuss the concept and realization of a heat bath in solid state quantum systems. We consider a set of quantum two-level systems as a bath, which can be realized as a collection of qubits.
Score: 0.0
License: http://creativecommons.org/licenses/by-nc-sa/4.0/
Abstract: We discuss the concept and realization of a heat bath in solid state quantum systems. First we demonstrate that, unlike a true resistor, a finite one-dimensional Josephson junction array or analogously a transmission line with non-vanishing frequency spacing does not strictly qualify as a Caldeira-Leggett type dissipative environment. We then consider a set of quantum two-level systems as a bath, which can be realized as a collection of qubits. We demonstrate that only a dense and wide distribution of energies of the two-level systems can secure long Poincare recurrence times characteristic of a proper heat bath. An alternative for this bath is a collection of harmonic oscillators, for instance in form of superconducting resonators.

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