626 citations
- Bristol Laboratories (United Kingdom)GB29 papers
- National Institute of InformaticsJP14 papers
- Hewlett-Packard (United States)US13 papers
- University of BristolGB12 papers
- The University of MelbourneAU4 papers
- The University of QueenslandAU4 papers
- University of OxfordGB4 papers
- Centre for Quantum Computation and Communication TechnologyAU3 papers
- Hitotsubashi UniversityJP3 papers
- Stanford UniversityUS3 papers
- University of CambridgeGB3 papers
- University of WaterlooCA3 papers
13 papers · 1 filter
The quantum-classical crossover of a field mode
M. J. Everitt, W. J. Munro, T. P. Spiller
We explore the quantum-classical crossover in the behaviour of a quantum field mode. The quantum behaviour of a two-state system - a qubit - coupled to the field is used as a probe…
Superconducting charge qubits from a microscopic many-body perspective
D. A. Rodrigues, T. P. Spiller, J. F. Annett +1
The quantised Josephson junction equation that underpins the behaviour of charge qubits and other tunnel devices is usually derived through cannonical quantisation of the classical…
Freezing distributed entanglement in spin chains
Irene D'Amico, Brendon W. Lovett, Timothy P. Spiller
We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit ope…
Entanglement of superconducting charge qubits by homodyne measurement
D. A. Rodrigues, C. E. A. Jarvis, B. L. Györffy +2
We present a scheme by which projective homodyne measurement of a microwave resonator can be used to generate entanglement between two superconducting charge qubits coupled to this…
Giant optical Faraday rotation induced by a single electron spin in a quantum dot: Applications to entangling remote spins via a single photon
C. Y. Hu, A. Young, J. L. O'Brien +1
We propose a quantum non-demolition method - giant Faraday rotation - to detect a single electron spin in a quantum dot inside a microcavity where negatively-charged exciton strong…
Distributed implementation of standard oracle operators
Anthony Chefles
The standard oracle operator corresponding to a function f is a unitary operator that computes this function coherently, i.e. it maintains superpositions. This operator acts on a b…