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quant-ph2015★ 31 cited
System-time entanglement in a discrete time model
A. Boette, R. Rossignoli, N. Gigena +1
We present a model of discrete quantum evolution based on quantum correlations between the evolving system and a reference quantum clock system. A quantum circuit for the model is…
quant-ph2015★ 13 cited
Non-transverse factorizing fields and entanglement in finite spin systems
M. Cerezo, R. Rossignoli, N. Canosa
We determine the conditions for the existence of non-transverse factorizing magnetic fields in general spin arrays with anisotropic XYZ couplings of arbitrary range. It is first sh…