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Thermally driven quantum refrigerator autonomously resets superconducting qubit

Although classical thermal machines power industries and modern living, quantum thermal engines have yet to prove their utility. Here, …

Mohammed Ali Aamir, Paul Jamet Suria, José Antonio Marín Guzmán, Claudia Castillo-Moreno, Jeffrey M. Epstein, Nicole Yunger Halpern, Simone Gasparinetti

Thermodynamic perspective on quantum fluctuations

What is the major difference between large and small systems? At small length-scales the dynamics is dominated by fluctuations, whereas …

Akira Sone, Kanu Sinha, Sebastian Deffner

Properties and applications of the Kirkwood-Dirac distribution

The most famous quasi-probability distribution, the Wigner function, has played a pivotal role in the development of a …

David R. M. Arvidsson-Shukur, Stephan De Bievre, Justin Dressel, Andrew N. Jordan, Christopher Langrenez, Matteo Lostaglio, Jeff S. Lundeen, Nicole Yunger Halpern

Quantum thermodynamics of nonequilibrium processes in lattice gauge theories

A key objective in nuclear and high-energy physics is to describe nonequilibrium dynamics of matter, e.g., in the early Universe and in …

Zohreh Davoudi, Christopher Jarzynski, Niklas Mueller, Greeshma Oruganti, Connor Powers, Nicole Yunger Halpern

Maxwell's demon across the quantum-to-classical transition

In scenarios coined Maxwell’s demon, information on microscopic degrees of freedom is used to seemingly violate the second law of …

Björn Annby-Andersson, Debankur Bhattacharyya, Pharnam Bakhshinezhad, Daniel Holst, Guilherme De Sousa, Christopher Jarzynski, Peter Samuelsson, Patrick P. Potts

Key issues review: useful autonomous quantum machines

Controlled quantum machines have matured significantly. A natural next step is to increasingly grant them autonomy, freeing them from …

José Antonio Marín Guzmán, Paul Erker, Simone Gasparinetti, Marcus Huber, Nicole Yunger Halpern

Non-Abelian transport distinguishes three usually equivalent notions of entropy production

We extend entropy production to a deeply quantum regime involving noncommuting conserved quantities. Consider a unitary transporting …

Twesh Upadhyaya, Gabriel T. Landi, Nicole Yunger Halpern

Hybrid quantum-classical computation for automatic guided vehicles scheduling

Motivated by recent efforts to develop quantum computing for practical, industrial-scale challenges, we demonstrate the effectiveness …

Tomasz Śmierzchalski, Jakub Pawłowski, Artur Przybysz, Łukasz Pawela, Zbigniew Puchała, Mátyás Koniorczyk, Bartłomiej Gardas, Sebastian Deffner, Krzysztof Domino

Operator growth and spread complexity in open quantum systems

Commonly, the notion of ‘‘quantum chaos’’ refers to the fast scrambling of information throughout complex …

Eoin Carolan, Anthony Kiely, Steve Campbell, Sebastian Deffner

Conditional quantum thermometry–enhancing precision by measuring less

Taking accurate measurements of the temperature of quantum systems is a challenging task. The mathematical peculiarities of quantum …

Akira Sone, Diogo O. Soares-Pinto, Sebastian Deffner