[Physstaff] Colloquium 9/3/2016: "Hybrid quantum information processing with atoms, photons and superconducting circuits", Jonathan Pritchard (Strathclyde)

[Daniel Oi]

Dear All,

Next week’s colloquium will be given by Jonathan Pritchard (Strathclyde). As usual, there will be tea/coffee afterwards in the common room.

Title: Hybrid quantum information processing with atoms, photons and superconducting circuits
Speaker: Dr Jonathan Pritchard (SUPA Physics, University of Strathclyde)
Venue: John Anderson Building JA3.14
Time/Date: 3pm 9th March 2016

Abstract:
Hybrid quantum computation exploits the unique strengths of disparate quantum technologies, enabling realization of a scalable quantum device capable of both fast gates and long coherence times. We propose a quantum interface for creating hybrid entanglement between neutral atoms, superconducting circuits and optical photons. The interface is mediated by coupling superconducting circuits to Rydberg excited single atoms using chip-based coplanar waveguide microwave cavities. We have developed a simple gate scheme to enable entanglement of an atomic qubit with a microwave photon, with fidelity calculations based on realistic parameters giving Bell-state preparation fidelity exceeding 0.999 on μs timescales. Experimental progress towards the coherent excitation of a single atom above a coplanar waveguide in a 4 K cryostat at the University of Wisconsin-Madison will be presented, along with an overview of a newly established experiment at the University of Strathclyde focused on quantum networking of hybrid systems.

http://photonics.phys.strath.ac.uk/hybrid/

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Dr Daniel K. L. Oi
Lecturer, Quantum Information
Computational Nonlinear & Quantum Optics
SUPA Department of Physics
University of Strathclyde
Glasgow G4 0NG
United Kingdom

Tel: +44 141 548 3112
Fax: +44 141 552 2891
Web: cnqo.phys.strath.ac.uk

The Department of Physics, University of Strathclyde, Rated No. 1 in the UK by the UK led Research Excellence Framework (REF2014).

The University of Strathclyde is a charitable body, registered in Scotland, number SCO15263

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