Séminaires Nanoélectronique Quantique

Retrouver tous les "Séminaires Nanoélectronique Quantique" passés et à venir dans cette rubrique.

Le prochain séminaire aura lieu le :
Mardi 17 octobre 2017 à 14h, salle Rémy Lemaire, Institut Néel
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Superconducting microwave cavities as memories for modular quantum information processing
Wolfgang Pfaff (Yale University, USA)

Superconducting cavities can store microwave fields for several milliseconds, naturally making them a promising system for realizing memories for superconducting circuits. In this talk, I will present our approach for using cavities that are coupled to Josephson qubits as long-lived quantum memories. We show that 3D cavities made from bulk superconductors can be used to store quantum states on millisecond time scales [1]. We further demonstrate that these systems are capable of processing and protecting quantum information encoded in complex multiphoton states stored in the cavity [2].
An important consideration is how it is possible to scale up to large quantum information processing architectures from individual cavity systems. We aim to realize a modular architecture in which individual network nodes exchange quantum information through propagating photons in transmission lines [3, 4]. We show that we can, rapidly and on-demand, convert multiphoton quantum states from a cavity memory into propagating channels [5]. This enables us to realize quantum state transfer and entanglement between remote cavity nodes [6].
Our cavity system can thus serve as the backbone in a microwave quantum network. It can be used to realize error-protected distribution of quantum information, and thus provides a route towards a modular quantum computer.

References :
[1] Reagor et al., Phys. Rev. B 94, 014506 (2016)
[2] Ofek et al., Nature 536, 441 (2016)
[3] Kimble, Nature 453, 1023 (2008)
[4] Cirac, Zoller, Kimble, and Mabuchi, Phys. Rev. Lett. 78, 3221 (1998)
[5] Pfaff et al., Nat. Phys. 13, 882 (2017)
[6] Axline, Burkhart, Pfaff, et al., in preparation.

Contact : Wolfgang Pfaff

Les Organisateurs.
M. Hocevar, B. Sacepe, R. Whitney, C. Groth

Si vous souhaitez planifier des invitations, merci de nous contacter à l’adresse suivante :
equipe-seminaires-nano@fondation-nanosciences.fr

A venir
7 novembre 2017
Attila Geresdi (Station Q - Qtech - TUDelft)

Passé

2017

10 octobre 2017
From single magnetic adatoms on superconductors to coupled spin chains
de Katharina Franke (Freie Universität Berlin)

26 septembre 2017
Revealing a quantum phase transition with a Kondo circuit de Zubair Iftikhar (SPEC, CEA)
19 septembre 2017
Tinkering with Majoranas de Anton Akhmerov (TU Delft)
11 juillet 2017
The role of electron-electron interactions in graphene de Shaffique Adam (National University of Singapore)
20 juin 2017
Charge quantum interference device on superconducting nano-wires de Oleg Astafiev (Royal Holloway, University of London)
13 juin2017
Evolving functionality in nanomaterial networks de Wilfred G. van der Wiel (University of Twente, The Netherlands)
6 juin2017
Relaxation of an Electron Spin in a Moving Quantum Dotby Xuedong Hu (Department of Physics, University at Buffalo, USA)
30 mai
Understanding and exploiting interactions between components in quantum circuits de Philippe Joyez (SPEC, CEA-Saclay)
22 mai 2017
Feedback-tuned high fidelity gates for (GaAs based) two-electron spin qubits
de Hendrik Bluhm (RWTH Aachen University, Allemagne)

16 mai 2017
Electron teleportation in multi-terminal Majorana islands : Kondo effect at high temperature de Karen Michaeli (Weizmann Institute for Science, Israel)
9 mai 2017
Superconducting Atom Chips de Rainer Dumke (Nanyang Technological University, Singapore)

4 mai 2017
Quantum Physics in One Dimension using Nanostructured Josephson-junction Arrays de Tim Duty (University of New South Wales, Sydney)

20 avril 2017
Les bits quantiques MOS de Prof. Michel Pioro-Ladrière (Professeur associé, Département de physique, Université de Sherbrooke et Directeur adjoint, Institut Quantique, Université de Sherbrooke)
11 avril 2017
Quantum microwave devices based on inelastic Cooper pair tunneling de Max Hofheinz (CEA INAC)

28 mars 2017
Spin to charge conversion at room temperature using spin orbit coupling and recently discovered topological insulators de Laurent Vila (SPINTEC)

21 mars 2017

Spin Dynamics in Out-of-Equilibrium Superconductors de Charis Quay (Laboratoires de Physique des Solides, Université Paris Sud)

14 février 2017
Quantized circular photogalvanic effect in Weyl semimetals de Adolfo Grushin (Department of Physics, UC Berkeley et Institut Néel, CNRS & UGA)

7 février 2017
Confining the state of light to a quantum manifold by engineered two-photon loss de Zaki Leghtas (Laboratoire Pierre Aigrain - Ecole Normale Supérieure)

31 janvier 2017
Many-Body Localization Basics - Recent Highlights - Experimental possibilities de Nicolas Laflorencie (Laboratoire de Physique Théorique, Toulouse)

24 janvier 2017
Fluctuation theorems in engineered environments de Marcelo F. Santos (Universidade Federal do Rio de Janeiro, Brésil)

17 janvier 2017
THz Spectroscopy on Disordered Superconductors and the “Superconducting Dome” of Granular Aluminum de Marc Scheffler (Physikalisches Institut, University of Stuttgart, Germany)

10 janvier 2017
Mesoscopic Spectroscopy with Josephson Junctions de Caglar GIRIT (Collège de France, Paris)

Actualités

Agenda

C’Nano 2017 - The Nanoscience Meeting

mardi 5 décembre 2017 - 08h00 - INSA - Institut National des Sciences Appliquées de Lyon

Le comité de pilotage du C’Nano a le plaisir (...)

en savoir +

Séminaire Nanoélectronique Quantique : Attila Geresdi

mardi 7 novembre 2017 - 14h00 - Salle « Remy Lemaire » (K223)

Attila Geresdi (Station Q - Qtech - TUDelft) (...)

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Soutenance de thèse : Kitti Ratter (Institut Néel, CNRS/UGA)

vendredi 20 octobre 2017 - 10h30 - Salle « Remy Lemaire » (K223)

Résumé : The epitaxial growth conditions and (...)

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Seminar of Prof. Masato YASUI (KEIO Univ. School of Medicine Vice Dean)

lundi 23 octobre 2017 - 14h30 - Amphithéâtre sud Bat. Jean Roget

Overview of KEIO Univ. School of Medicine (...)

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