4 papers
Dissipative stabilization of squeezing beyond 3 dB in a microwave mode
R. Dassonneville, R. Assouly, T. Peronnin +3
While a propagating state of light can be generated with arbitrary squeezing by pumping a parametric resonator, the intra-resonator state is limited to 3 dB of squeezing. Here, we…
Number-resolved photocounter for propagating microwave mode
Rémy Dassonneville, Réouven Assouly, Théau Peronnin +2
Detectors of propagating microwave photons have recently been realized using superconducting circuits. However a number-resolved photocounter is still missing. In this letter, we d…
Exponential suppression of bit-flips in a qubit encoded in an oscillator
Raphaël Lescanne, Marius Villiers, Théau Peronnin +6
A quantum system interacts with its environment, if ever so slightly, no matter how much care is put into isolating it. As a consequence, quantum bits (qubits) undergo errors, putt…
Sequential dispersive measurement of a superconducting qubit
Théau Peronnin, Danijela Marković, Quentin Ficheux +1
We present a superconducting device that realizes the sequential measurement of a transmon qubit. The device disables common limitations of dispersive readout such as Purcell effec…