Quantum technologies need a quantum energy initiative

A Auffèves - PRX Quantum, 2022 - APS
Quantum technologies are currently the object of high expectations from governments and
private companies, as they hold the promise to shape safer and faster ways to extract …

[HTML][HTML] A quantum battery with quadratic driving

CA Downing, MS Ukhtary - Communications Physics, 2023 - nature.com
Quantum batteries are energy storage devices built using quantum mechanical objects,
which are developed with the aim of outperforming their classical counterparts. Proposing …

Energetics of a single qubit gate

J Stevens, D Szombati, M Maffei, C Elouard… - Physical Review Letters, 2022 - APS
Qubits are physical, a quantum gate thus not only acts on the information carried by the qubit
but also on its energy. What is then the corresponding flow of energy between the qubit and …

[HTML][HTML] Propagating quantum microwaves: towards applications in communication and sensing

M Casariego, EZ Cruzeiro, S Gherardini… - Quantum Science …, 2023 - iopscience.iop.org
The field of propagating quantum microwaves is a relatively new area of research that is
receiving increased attention due to its promising technological applications, both in …

[HTML][HTML] Kirkwood-Dirac quasiprobability approach to the statistics of incompatible observables

M Lostaglio, A Belenchia, A Levy… - Quantum, 2023 - quantum-journal.org
Recent work has revealed the central role played by the Kirkwood-Dirac quasiprobability
(KDQ) as a tool to properly account for non-classical features in the context of condensed …

Energetic cost of Hamiltonian quantum gates

S Deffner - Europhysics Letters, 2021 - iopscience.iop.org
Landauer's principle laid the main foundation for the development of modern
thermodynamics of information. However, in its original inception the principle relies on …

End-point measurement approach to assess quantum coherence in energy fluctuations

S Gherardini, A Belenchia, M Paternostro… - Physical Review A, 2021 - APS
We discuss the role of quantum coherence in the energy fluctuations of open quantum
systems. To this aim, we introduce a protocol to which we refer as the end-point …

Third law of thermodynamics and the scaling of quantum computers

L Buffoni, S Gherardini, E Zambrini Cruzeiro, Y Omar - Physical Review Letters, 2022 - APS
The third law of thermodynamics, also known as the Nernst unattainability principle, puts a
fundamental bound on how close a system, whether classical or quantum, can be cooled to …

Experimental analysis of energy transfers between a quantum emitter and light fields

I Maillette de Buy Wenniger, SE Thomas, M Maffei… - Physical Review Letters, 2023 - APS
Energy can be transferred between two quantum systems in two forms: unitary energy—that
can be used to drive another system—and correlation energy—that reflects past …

Quantum Stirling heat engine operating in finite time

D Das, G Thomas, AN Jordan - Physical Review A, 2023 - APS
In a quantum Stirling heat engine, the heat exchanged with two thermal baths is partly
utilized for performing work by redistributing the energy levels of the working substance. We …