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Stability of long-sustained oscillations induced by electron tunneling
Jorge Tabanera-Bravo, Florian Vigneau, Juliette Monsel +9
Self-oscillations are the result of an efficient mechanism generating periodic motion from a constant power source. In quantum devices, these oscillations may arise due to the inte…
Anomalous energy exchanges and Wigner function negativities in a single qubit gate
Maria Maffei, Cyril Elouard, Bruno O. Goes +3
Anomalous weak values and Wigner function's negativity are well known witnesses of quantum contextuality. We show that these effects occur when analyzing the energetics of a single…
Optimizing resource efficiencies for scalable full-stack quantum computers
Marco Fellous-Asiani, Jing Hao Chai, Yvain Thonnart +3
In the race to build scalable quantum computers, minimizing the resource consumption of their full stack to achieve a target performance becomes crucial. It mandates a synergy of f…
Many-body quantum vacuum fluctuation engines
Étienne Jussiau, Léa Bresque, Alexia Auffèves +2
We propose a many-body quantum engine powered by the energy difference between the entangled ground state of the interacting system and local separable states. Performing local ene…
Comparing the quantum switch and its simulations with energetically-constrained operations
Marco Fellous-Asiani, Raphaël Mothe, Léa Bresque +5
Quantum mechanics allows processes to be superposed, leading to a genuinely quantum lack of causal structure. For example, the process known as the quantum switch applies two opera…
High-rate entanglement between a semiconductor spin and indistinguishable photons
N. Coste, D. Fioretto, N. Belabas +15
Photonic graph states, quantum light states where multiple photons are mutually entangled, are key resources for optical quantum technologies. They are notably at the core of error…