Related papers: Quantum switch instabilities with an open control

Quantum switch instabilities with an open control

URL: http://arxiv.org/abs/2405.09631v1
Date: Wed, 15 May 2024 18:01:15 GMT
Title: Quantum switch instabilities with an open control
Authors: Otavio A. D. Molitor, André H. A. Malavazi, Roberto Dobal Baldijão, Alexandre C. Orthey Jr., Ismael L. Paiva, Pedro R. Dieguez,
Abstract summary: In this work, we employ a collisional model to investigate the impact of an open control system on the generation of interference between two causal orders. We present the environmental instabilities for the switch of two arbitrary quantum operations and examine the influence of environmental temperature on each potential outcome of control post-selection.
Score: 37.69303106863453
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The superposition of causal order shows promise in various quantum technologies. However, the fragility of quantum systems arising from environmental interactions, leading to dissipative behavior and irreversibility, demands a deeper understanding of the possible instabilities in the coherent control of causal orders. In this work, we employ a collisional model to investigate the impact of an open control system on the generation of interference between two causal orders. We present the environmental instabilities for the switch of two arbitrary quantum operations and examine the influence of environmental temperature on each potential outcome of control post-selection. Additionally, we explore how environmental instabilities affect protocol performance, including switching between mutually unbiased measurement observables and refrigeration powered by causal order superposition, providing insights into broader implications.

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