Quantum computing with an electron spin ensemble.

Phys Rev Lett 103:7 (2009) 070502

Authors:

JH Wesenberg, A Ardavan, GAD Briggs, JJL Morton, RJ Schoelkopf, DI Schuster, K Mølmer

Abstract:

We propose to encode a register of quantum bits in different collective electron spin wave excitations in a solid medium. Coupling to spins is enabled by locating them in the vicinity of a superconducting transmission line cavity, and making use of their strong collective coupling to the quantized radiation field. The transformation between different spin waves is achieved by applying gradient magnetic fields across the sample, while a Cooper pair box, resonant with the cavity field, may be used to carry out one- and two-qubit gate operations.

Comparison of multiwavelength observations of 9 broad-band pulsars with the spectrum of the emission from an extended current with a superluminally rotating distribution pattern

(2009)

Authors:

H Ardavan, A Ardavan, J Singleton, J Fasel, W Junor, J Middleditch, MR Perez, A Schmidt, P Sengupta, P Volegov

Inadequacies in the conventional treatment of the radiation field of moving sources

(2009)

Authors:

Houshang Ardavan, Arzhang Ardavan, John Singleton, Joseph Fasel, Andrea Schmidt

Quantum computing with an electron spin ensemble

Physical Review Letters 103:7 (2009)

Authors:

JH Wesenberg, A Ardavan, GAD Briggs, JJL Morton, RJ Schoelkopf, DI Schuster, K Mølmer

Abstract:

We propose to encode a register of quantum bits in different collective electron spin wave excitations in a solid medium. Coupling to spins is enabled by locating them in the vicinity of a superconducting transmission line cavity, and making use of their strong collective coupling to the quantized radiation field. The transformation between different spin waves is achieved by applying gradient magnetic fields across the sample, while a Cooper pair box, resonant with the cavity field, may be used to carry out one- and two-qubit gate operations. © 2009 The American Physical Society.

Storage of multiple coherent microwave excitations in an electron spin ensemble

(2009)

Authors:

Hua Wu, Richard E George, Arzhang Ardavan, Janus H Wesenberg, Klaus Mølmer, David I Schuster, Robert J Schoelkopf, Kohei M Itoh, John JL Morton, G Andrew D Briggs