Stephen D. Bartlett, Barry C. Sanders, Benjamin T. H. Varcoe, Hubert de Guise
Published 2000-11-20, updated 2002-04-08Version 3
By encoding a qudit in a harmonic oscillator and investigating the infinite limit, we give an entirely new realization of continuous-variable quantum computation. The generalized Pauli group is generated by number and phase operators for harmonic oscillators. We describe a physical realization in terms of modes in a microwave cavity, coupled via a standard Kerr nonlinearity.
Comments: 4 pages, version as it appears in conference proceedings
Journal: Proceedings of IQC'01, ed. R. G. Clark, Rinton, Princeton NJ (2001) pp. 344-347
From Qubits to Continuous-Variable Quantum Computation
Supersymmetry, quark confinement and the harmonic oscillator
Cooling a harmonic oscillator by optomechanical modification of its bath
