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quant-ph2015★ 11 cited
Nonlinear Michelson interferometer for improved quantum metrology
Alfredo Luis, Ángel Rivas
We examine quantum detection via a Michelson interferometer embedded in a gas with Kerr nonlinearity. This nonlinear interferometer is illuminated by pulses of classical light. Thi…
cond-mat.str-el2015★ 43 cited
Symmetry-protected Topological Phases at Finite Temperature
O. Viyuela, A. Rivas, M. A. Martin-Delgado
We have applied the recently developed theory of topological Uhlmann numbers to a representative model of a topological insulator in two dimensions, the Qi-Wu-Zhang model. We have…