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Equivalent efficiency of a simulated photon-number detector
K. Nemoto, S. L. Braunstein
Homodyne detection is considered as a way to improve the efficiency of communication near the single-photon level. The current lack of commercially available {\it infrared} photon-…
Weak force detection with superposed coherent states
W. J. Munro, K. Nemoto, G. J. Milburn +1
We investigate the utility of non classical states of simple harmonic oscillators, particularly a superposition of coherent states, for sensitive force detection. We find that like…
Efficient Classical Simulation of Continuous Variable Quantum Information Processes
Stephen D. Bartlett, Barry C. Sanders, Samuel L. Braunstein +1
We obtain sufficient conditions for the efficient simulation of a continuous variable quantum algorithm or process on a classical computer. The resulting theorem is an extension of…
Typical entanglement in multi-qubit systems
Vivien M Kendon, Kae Nemoto, William J Munro
Quantum entanglement and its paradoxical properties hold the key to an information processing revolution. Much attention has focused recently on the challenging problem of characte…
The Bell Inequality and Entanglement
W. J. Munro, K. Nemoto, A. G. White
Entanglement is a critical resource used in many current quantum information schemes. As such entanglement has been extensively studied in two qubit systems and its entanglement na…