Geometric heat pumping on a quantum processor
Abstract
Geometric heat pumping is the transfer of energy between reservoirs at equal temperature where the heat exchanged in an adiabatic cycle depends only on the driving contour in parameter space. We implement this mechanism on a superconducting quantum processor using a collision model, where a driven qubit interacts repeatedly with two ancilla qubits that are prepared in thermal states and emulate the reservoirs. Energy measurements before and after each interaction provide a calorimetric record of the heat exchanged with each reservoir. By reversing the driving contour, we extract a heat contribution associated with pumping. Its dependence on the period and on the contour follows exact simulations of the collision model, without adjustable parameters, and approaches in the slow-driving regime the geometric limit of the corresponding Lindblad dynamics.
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BibTeX
@misc{caselli2026geometric,
title = {{Geometric heat pumping on a quantum processor}},
author = {Gerónimo J. Caselli and Luis O. Manuel and Liliana Arrachea and Pablo S. Cornaglia},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.09062},
eprint = {2610.09062},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.09062},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Geometric heat pumping on a quantum processor
AU - Gerónimo J. Caselli
AU - Luis O. Manuel
AU - Liliana Arrachea
AU - Pablo S. Cornaglia
PY - 2026
DA - 2026/10/15
PB - arXiv
DO - 10.48550/arxiv.2610.09062
UR - https://arxiv.org/abs/2610.09062
AB - Geometric heat pumping is the transfer of energy between reservoirs at equal temperature where the heat exchanged in an adiabatic cycle depends only on the driving contour in parameter space. We implement this mechanism on a superconducting quantum processor using a collision model, where a driven qubit interacts repeatedly with two ancilla qubits that are prepared in thermal states and emulate the reservoirs. Energy measurements before and after each interaction provide a calorimetric record of the heat exchanged with each reservoir. By reversing the driving contour, we extract a heat contribution associated with pumping. Its dependence on the period and on the contour follows exact simulations of the collision model, without adjustable parameters, and approaches in the slow-driving regime the geometric limit of the corresponding Lindblad dynamics.
ER -