The Quantum Energy Team currently has two post-doc jobs offers:
Post-doc on energetic cost of NISQ
We are searching for motivated and talented post-docs interested in modeling and optimizing the energetic cost of NISQ quantum computing systems, from the fundamental to the full stack level. The post-doc will join the QET@Singapore led by A. Auffèves, to work in close collaboration between Atos, IHPC/A*star Singapore, the IRL MajuLab and the Centre for Quantum Technologies.
Context and state of the art: Quantum computing is usually motivated by the search for quantum speed-ups, also called computational quantum advantages. So far, the physical resource cost of quantum computers has scarcely been considered, current estimations mostly focusing on hardware-independent costs like the number of gates or the number of physical qubits. In this project, we will model hardware-dependent resource costs like the energy or the power consumption, and how they relate to the performance of simple NISQ algorithms. Investigations will address the fundamental level, e.g. the fundamental costs related to the primitives of the computation, and the full stack level involving e.g. the cost of the classical control as well as the cost of classical computing usually associated with NISQ algorithms. They will lead to define various quantum energy efficiencies, and to use these new figures of merit to benchmark a large variety of quantum machines. An important motivation is to assess if a NISQ processor can show a quantum energetic advantage, i.e. to search for general conditions at which it would consume less energy than a classical processor to perform the same task. The project is in line with the quantum energy initiative. It relies on the methodology introduced in [1] and applied in [2] for an ideal full-stack, fault tolerant superconducting quantum processor, where we identified the various conditions to create a quantum energy advantage.
Profile: The applicant should have a strong background in quantum computing in the NISQ era and/or quantum thermodynamics. Experience in working with experimentalists from quantum photonics or superconducting circuits will be a strong plus as well as some knowledge of hybrid classical/quantum computing.
Job details: The position is of one to three years. The post-doc will be based at MajuLab, a CNRS International Research Laboratory based in Singapore. She/he will be part of the Quantum Energy Team@Singapore led by Alexia Auffèves and located inside the Centre for Quantum Technologies, Singapore. Depending on the experience and profile of the applicant, typical salaries range from 3k€ to 10k€.
Contact: Please send applications to alexia.auffeves@cnrs.fr. Applications should contain a cover letter, a curriculum vitae, a list of publications, as well as at least one reference letter.
Bibliography:
[1] A. Auffèves, Quantum technologies need a quantum energy initiative, PRX Quantum 3, 020101 (2022).
[2] M. Fellous-Asiani et al, Optimizing resource efficiencies for scalable full-stack quantum computers, arXiv:2209.05469.
Post-doc on the energetics of quantum measurements
We are searching for motivated and talented post-docs interested in the fundamental resource cost of quantum measurement and related advantages of quantum nature. The post-doc will join the QET@Singapore led by A. Auffèves.
Context and state of the art: Quantum measurement lies at the crossroad between quantum foundations and quantum technologies. One the one hand, the measurement problem has irrigated all debates about the meaning and completeness of quantum theory – On the other, measurements are key processes in quantum technologies, as they bring results at the (macroscopic) level of the end user. The present project aims to analyze the resource cost of quantum measurement and how it relates to information extraction at the quantum and classical levels. We will optimize the resulting measurement energy efficiency, with special interest in possible advantages when quantum resources are exploited to perform the measurements [1], the fact that quantum measurement can behave as an energetic resource in quantum engines [2,3], and in the intimate relation between energy cost and reversibility. The project will be conducted in close collaboration with high level experimental groups working with superconducting circuits and quantum photonics.
Profile: The applicant should have a strong background in the theory of quantum measurement, quantum open systems and/or quantum thermodynamics, and waveguide quantum electrodynamics. The capacity to collaborate with experimentalists, by proposing and modeling experiments, will be a strong plus.
Job details: The position is of two years renewable. The post-doc will be based at MajuLab, a CNRS International Research Laboratory based in Singapore. She/he will be part of the Quantum Energy Team@Singapore led by Alexia Auffèves and located inside the Centre for Quantum Technologies, Singapore. The project is part of A. Auffèves’ Exploratory Initiative supported by the CQT.
Contact: Please send applications to alexia.auffeves@cnrs.fr and apply on the NUS webpage. Applications should contain a cover letter, a curriculum vitae, a list of publications, as well as at least one reference letter.
Bibliography:
[1] X. Linpeng, L. Bresque, M. Maffei, A. Jordan, A. Auffèves and K. Murch, Energetic cost of measurements using quantum, coherent and thermal light, Phys. Rev. Lett. 128, 220506 (2022).
[2] L. Bresque, P. Camati, R. Spencers, K. Murch, A. Jordan, A. Auffèves, Two-qubit engine fueled by entanglement and local measurements, Phys. Rev. Lett. 126, 120605 (2021), Editor’s Suggestion, Communication INP, covered in Phys.org.
[3] C. Elouard, D. Herrera-Martí, B. Huard, Alexia Auffèves, Extracting work from quantum measurement in Maxwell demon engines, Phys. Rev. Lett. 118, 260603 (2017), featured in Phys.org and Nature Research Highlights.