Alexia Auffèves

Alexia Auffèves is a First Class Research Director (DR1) at CNRS. She runs the CNRS International Research Lab MajuLab and leads the Singaporean node of the |Quantum Energy Team>.

After an experimental PhD under the supervision of Prof. S. Haroche, she is recruited at CNRS in 2005 in Grenoble where she develops a research line around the theory of quantum optics and quantum thermodynamics. She promotes the physics-philosophy interface within the Grenoble centre for quantum science and technologies now known as QuantAlps, which she runs between 2017 and 2022. In 2022, she launches the Quantum Energy Initiative (QEI), an interdisciplinary and international research community to understand the energetic footprint of emerging quantum technologies.

Her fields of interest are quantum energetics, quantum optics, and quantum foundations.

We are hiring

We are currently searching for two research fellows on the energetics of quantum computing and quantum measurement. These positions are funded by the French quantum strategy and the French public bank of investment (BPI). They come with excellent salary conditions and networking opportunities. For those hesitating between academia and industry, these positions are dream places to get the best of the two worlds!

=>Research fellow on the energetics efficiency of quantum processors (systemic, hardware-agnostic approach)

=>Research fellow on the energetics efficiency of photonics and cat-code based quantum computers

Group Members

Konstantina KOTEVA – Research Fellow, CQT
Kiarn LAVERICK – Research Fellow, CQT
Xiangjing LIU – Research Fellow, CNRS@CREATE
Samyak PRASAD – PhD student, University Grenoble Alpes
Nathan SHETTLE – Research Fellow, CQT
Harshit VERMA – Engineer, Eviden

Thomas COPIE – Intern, ENS PSL, France
Faustine GIRAUD – Intern, ENSTA and Science Po – France
Martin PLAZANET – Intern, Ecole Polytechnique – France

Ongoing projects

“BACQ” [French Quantum Strategy]: to build energetics figures of merit from quantum processors => Job Offer

“HQI” [French Quantum Strategy]: to explore the potential of noisy quantum computations to show an energetic advantage. In collaboration with Eviden.

“NISQ2LSQ” and “OQuLus” [French Quantum Strategy]: to develop realistic models for primitives of photonics quantum computations.

“NGap” [NRF through CNRS@CREATE]: to develop realistic models for primitives of gates and amplification based on optical non-linearities.

“OECQ” [French Public Bank of Investment]: to build, mesure and optimize the energetics efficiency of the quantum processors fabricated by Alice&Bob and Quandela. The project is headed by EDF =>Job Offer

CQT Exploratory Initiative: to develop a research line on the energy cost of quantum technologies

Publications

2024

Fundamental mechanisms of energy exchanges in autonomous measurements based on dispersive qubit-light interaction

Nicolò Piccione, Maria Maffei, Xiayu Linpeng, Andrew N. Jordan, Kater W. Murch, and Alexia Auffèves, Phys. Rev. A 109, 063707.

Reservoir-Free Decoherence in Flying Qubits

Nicolò Piccione, Léa Bresque, Andrew N. Jordan, Robert S. Whitney, and Alexia Auffèves, Phys. Rev. Lett. 132, 220403.

Stability of long-sustained oscillations induced by electron tunneling

Jorge Tabanera-Bravo, Florian Vigneau, Juliette Monsel, Kushagra Aggarwal, Léa Bresque, Federico Fedele, Federico Cerisola, G. A. D. Briggs, Janet Anders, Alexia Auffèves, Juan M. R. Parrondo, and Natalia Ares, Phys. Rev. Research 6, 013291.

2023

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

I. Maillette de Buy Wenniger, S.E. Thomas, M. Maffei, S.C. Wein, M. Pont, N. Belabas, S. Prasad, A. Harouri, A. Lemaître, I. Sagnes, N. Somaschi, A. Auffeves, P. Senellart, Physical Review Letters 131 (26), 260401.

Optimizing resource efficiencies for scalable full-stack quantum computers

M. Fellous-Asiani, J.-H. Chai, Y. Thonnart, H.-K. Ng, R. S. Whitney and A. Auffèves, PRX Quantum 4, 040319 (2023).

Energy-efficient quantum non-demolition measurement with a spin-photon interface

Maria Maffei, Bruno O. Goes, Stephen C. Wein, Andrew N. Jordan, Loïc Lanco and Alexia Auffèves, Quantum 7, 1099 (2023).

Many-body quantum vacuum fluctuation engine

E. Jussiau, L. Bresque, A. Auffèves, K.W. Murch, A.N. Jordan, Phys. Rev. Research 5, 033122 (2023).

Comparing the quantum switch and its simulations with energetically constrained operations

Marco Fellous-Asiani, Raphaël Mothe, Léa Bresque, Hippolyte Dourdent, Patrice A. Camati, Alastair A. Abbott, Alexia Auffèves, Cyril Branciard, Quantum 7, 1099 (2023).

Anomalous energy exchanges and Wigner-function negativities in a single-qubit gate

Maria Maffei, Cyril Elouard, Bruno O. Goes, Benjamin Huard, Andrew N. Jordan, and Alexia Auffèves, Phys. Rev. A 107, 023710 (2023).

For general public

Women of Quantum Technology: Alexia Auffèves of the CNRS

Inside Quantum Technology, by Kenna Hughes-Castleberry posted 29 May 2024.

Vers des technologies quantiques responsables

A. Auffèves, O. Ezratty et R. Whitney, Actes du Colloque « Société bas carbone » de la REE, January 2023.

Quid après les lois de Moore et de Koomey ?

Mazauric, A. Auffèves, O. Ezratty et S. Ciliberto, Annales des Mines, série responsabilité et environnement n°110, Avril 2023, p. 41

Les défis énergétiques des nouvelles machines quantiques

Auffèves, Pour La Science n°544, Février 2023 (couverture)

Videos of Alexia Auffèves

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