26 citations · 40 across the 4 of their papers we have counts for
4 papers
Quantum non ideal measurements
Jean-Michel Courty, Francesca Grassia, Serge Reynaud
We analyse non ideal quantum measurements described as scattering processes providing an estimator of the measured quantity. The sensitivity is expressed as an equivalent input noi…
Thermal and quantum noise in active systems
Jean-Michel Courty, Francesca Grassia, Serge Reynaud
We present a quantum network approach to the treatment of thermal and quantum fluctuations in measurement devices. The measurement is described as a scattering process of input flu…
Quantum theory of fluctuations in a cold damped accelerometer
Francesca Grassia, Jean-Michel Courty, Serge Reynaud +1
We present a quantum network approach to real high sensitivity measurements. Thermal and quantum fluctuations due to active as well as passive elements are taken into account. The…
Quantum noise in ideal operational amplifiers
Jean-Michel Courty, Francesca Grassia, Serge Reynaud
We consider a model of quantum measurement built on an ideal operational amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and w…