Quantum information processing with Schrodinger cats

Research output: Contribution to conferencePaper

Published copy (DOI)




Conference1st international Symposium on Fluctuations and Noise
CountryUnited States
CitySanta Fe, New Mexico
Conference date(s)1/06/034/06/03

Publication details

DatePublished - 2003
Original languageUndefined/Unknown


We investigate the utility of a superposition of coherent states for quantum information processing. We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional measurements and coherent superposition resource states. We can utilize such states and associated quantum circuits for two quantum metrology applications, one for weak force measurements and the second for precise phase estimation. We show in both cases that a sensitivity at the Heisenberg limit is achievable.

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