Past quantum state analysis of the photon number evolution in a cavity

A tweezers operation performed with the atom initially in g and an empty cavity leads to a partially transparent EC (the initial state has a component on |−, 0i, which is not

In this paper we investigate several properties of the full signal-idler-pump mode quantum state generated by a triply resonant non-degenerate Optical Parametric Oscillator

Process tomography of field damping and measurement of Fock state lifetimes by quantum non-demolition photon counting in a cavity... Curie, 24 rue Lhomond, F-75231 Paris Cedex

We initialize the field in |0〉 by first absorbing thermal photons with ∼10 atoms prepared in g and tuned to resonance with the cavity mode (residual photon number ∼

The telegraphic signals 29 obtained by detecting a stream of atoms reveal the photon number evolution, with quantum jumps between n = 0 and 1 as the field randomly exchanges

Atomic qubits probe the field one at a time and n is progressively pinned down to an inherently random value, the probability for finding n being the P(n) value of the

We also note that given a well-known down- conversion process, the nonlocal phase of the daughter photon pair encodes the phase of the pump pulse and is invariant under local

This paper is organized as follows: In Section II we connect the photon flux, corresponding to the propaga- tion of the photonic state in free space leaking from the cavity, to