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Audrey Cottet

• Other Affiliations: add
• Research Interests: Ptolemaic and Roman Egypt , Musical Iconography , Animals in Roman spectacles , Ancient Soundscapes , Classical Archaeology , and Physique () edit
• About: I am a CNRS Research Director at the Ecole Normale Superieure of Paris. I have a primary research activity in Theoret... more I am a CNRS Research Director at the Ecole Normale Superieure of Paris. I have a primary research activity in Theoretical Physics and a secondary research activity in Archaeomusicology. I have performed an experimental PhD on superconducting quantum bits (Saclay, France, 1999-2002). This work lead to the first superconducting quantum bit prototype with a lifetime of the order of a microsecond (Science 296, 886 (2002)). After this thesis, I became a theorist of hybrid mesoscopic and nanoscopic structures. I was a post-doc in Basel, Switzerland (2002-2005), and then Paris (2005-2008), working on spin dependent transport in quantum dots as well as superconducting and ferromagnetic proximity effects. My highlights include the development of nanospintronics with carbon nanotubes (Nature Phys. 1, 99 (2005)), and predictions of positive current cross-correlations in quantum dot circuits (Phys. Rev. Lett. 92, 206801 (2004)/ Phys. Rev. B 70, 115315 (2004)), which were confirmed experimentally by the team of Prof. C. Marcus. I am now focusing on the development of Cavity Quantum Electrodynamics with hybrid nanocircuits, in close collaboration with the experimental "Hybrid Quantum Circuits" team headed by Takis Kontos. The first experimental results of this collaboration include a coherent spin/photon coupling at the single spin level (Science 349, 6246 (2015)) and the observation of the frozen charge dynamics in a Kondo impurity (Nature 545, 71 (2017)). Very recently, I have also started working on the quantum detection of the Dark Matter and on the superconductivity effect in Weyl semimetals. My secondary research activity on archeomusicology focuses on concussion idiophones, which are small percussion instruments such as castanets or cymbals. I have recently published two peer-reviewed articles on cymbals playing in the Roman Empire, in the journals "CLARA" hosted by the Historical Museum of Oslo and "Early Music" edited by Oxford Academic. (I am a CNRS Research Director at the Ecole Normale Superieure of Paris. I have a primary research activity in Theoretical Physics and a secondary research activity in Archaeomusicology. <br /><br />I have performed an experimental PhD on superconducting quantum bits (Saclay, France, 1999-2002). This work lead to the first superconducting quantum bit prototype with a lifetime of the order of a microsecond (Science 296, 886 (2002)). After this thesis, I became a theorist of hybrid mesoscopic and nanoscopic structures. I was a post-doc in Basel, Switzerland (2002-2005), and then Paris (2005-2008), working on spin dependent transport in quantum dots as well as superconducting and ferromagnetic proximity effects. My highlights include the development of nanospintronics with carbon nanotubes (Nature Phys. 1, 99 (2005)), and predictions of positive current cross-correlations in quantum dot circuits (Phys. Rev. Lett. 92, 206801 (2004)/ Phys. Rev. B 70, 115315 (2004)), which were confirmed experimentally by the team of Prof. C. Marcus. I am now focusing on the development of Cavity Quantum Electrodynamics with hybrid nanocircuits, in close collaboration with the experimental &quot;Hybrid Quantum Circuits&quot; team headed by Takis Kontos. The first experimental results of this collaboration include a coherent spin/photon coupling at the single spin level (Science 349, 6246 (2015)) and the observation of the frozen charge dynamics in a Kondo impurity (Nature 545, 71 (2017)). Very recently, I have also started working on the quantum detection of the Dark Matter and on the superconductivity effect in Weyl semimetals.<br /><br />My secondary research activity on archeomusicology focuses on concussion idiophones, which are small percussion instruments such as castanets or cymbals. I have recently published two peer-reviewed articles on cymbals playing in the Roman Empire, in the journals &quot;CLARA&quot; hosted by the Historical Museum of Oslo and &quot;Early Music&quot; edited by Oxford Academic.) edit
• Advisors: edit

Publication Date: Nov 14, 2003

Publication date: jan 4, 2005, publication date: 2001, publication name: macroscopic quantum coherence and quantum computing, research interests: physics , superconductivity , transistor , and amplifier (), publication date: 2004, publication name: quantum computing and quantum bits in mesoscopic systems, research interests: physics (), publication date: 2003, publication name: new directions in mesoscopic physics (towards nanoscience), research interests: computer science , quantum computer , and quantum gate (), publication date: 2002, publication name: international workshop on superconducting nano-electronics devices, research interests: physics and coulomb blockade (), publication name: physica scripta, research interests: physics , quantum information , mathematical sciences , physical sciences , quantum decoherence theory , and 4 more constant time delay , excited states , transition period , and superposition principle ( constant time delay , excited states , transition period , and superposition principle ), publisher: american association for the advancement of science (aaas), publication name: science, research interests: physics , microwave , science , medicine , multidisciplinary , and 5 more quantum coherence , electrical circuit theory , quantum , quality factor , and radio frequency ( quantum coherence , electrical circuit theory , quantum , quality factor , and radio frequency ), publisher: american physical society (aps), publication name: physical review letters, research interests: physics , condensed matter physics , medicine , physical sciences , and ddc (), publisher: elsevier bv, publication name: physica e: low-dimensional systems and nanostructures, research interests: materials engineering , physics , quantum mechanics , nanotechnology , quantum coherence , and 6 more electrical circuit theory , quantum , quantum circuits , degree of freedom , electronic circuit , and building block ( electrical circuit theory , quantum , quantum circuits , degree of freedom , electronic circuit , and building block ), publication name: physica c: superconductivity, research interests: materials engineering , physics , condensed matter physics , quantum coherence , quantum computer , and electrical and electronic engineering (), publisher: wiley-blackwell, publication name: fortschritte der physik, research interests: physics , quantum physics , microwave , protein science , electrical circuit theory , and 6 more mathematical sciences , physical sciences , oscillations , precession , excited states , and spin echo ( mathematical sciences , physical sciences , oscillations , precession , excited states , and spin echo ), publisher: university of oslo library, publication date: 2022, publication name: clara, research interests: flute and clara (), publisher: oxford university press (oup), publication date: 2021, publication name: early music, research interests: early music , art , and dance (), publication name: physical review b, research interests: physics , quantum mechanics , mesoscopic physics , physical , and photon (), publisher: springer science and business media llc, publication date: 2019, publication name: npj quantum information, research interests: physics and quantum (), publication date: 2014, research interests: physics , physical sciences , and chemical sciences (), publication date: 2011, research interests: physics , magnetic field , physical sciences , electron transport , chemical sciences , and spin polarization (), publication name: nature materials, research interests: multidisciplinary and nature materials (), doi: 10.1103/physrevb.102.155105.

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Implementing Qubits with Superconducting Integrated Circuits

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• Michel H. Devoret 2 &
• John M. Martinis 3 , 4  

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Superconducting qubits are solid state electrical circuits fabricated using techniques borrowed from conventional integrated circuits. They are based on the Josephson tunnel junction, the only non-dissipative, strongly non-linear circuit element available at low temperature. In contrast to microscopic entities such as spins or atoms, they tend to be well coupled to other circuits, which make them appealling from the point of view of readout and gate implementation. Very recently, new designs of superconducting qubits based on multi-junction circuits have solved the problem of isolation from unwanted extrinsic electromagnetic perturbations. We discuss in this review how qubit decoherence is affected by the intrinsic noise of the junction and what can be done to improve it.

• Quantum information
• quantum computation
• superconducting devices
• Josephson tunnel junctions
• integrated circuits

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National Institute of Standards and Technology, Boulder, CO, 80305, USA

John M. Martinis

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Devoret, M.H., Martinis, J.M. (2005). Implementing Qubits with Superconducting Integrated Circuits. In: Everitt, H.O. (eds) Experimental Aspects of Quantum Computing. Springer, Boston, MA. https://doi.org/10.1007/0-387-27732-3_12

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