100 citations · 297 across the 13 of their papers we have counts for
5 papers · 1 filter
Photon-instanton scattering in a superconducting circuit: Beyond the very high impedance regime
Amir Burshtein, David Shuliutsky, Roman Kuzmin +2
Instantons, semi-classical trajectories of quantum tunneling in imaginary time, have long been used to study thermodynamic and transport properties in a myriad of condensed matter…
Observation of the Schmid-Bulgadaev dissipative quantum phase transition
Roman Kuzmin, Nitish Mehta, Nicholas Grabon +4
Although quantum mechanics applies to many macroscopic superconducting devices, one basic prediction remained controversial for decades. Namely, a Josephson junction connected to a…
Theory of strong down-conversion in multi-mode cavity and circuit QED
Nitish Mehta, Cristiano Ciuti, Roman Kuzmin +1
We revisit the superstrong coupling regime of multi-mode cavity quantum electrodynamics (QED), defined to occur when the frequency of vacuum Rabi oscillations between the qubit and…
Down-conversion of a single photon as a probe of many-body localization
Nitish Mehta, Roman Kuzmin, Cristiano Ciuti +1
Decay of a particle into more particles is a ubiquitous phenomenon to interacting quantum systems, taking place in colliders, nuclear reactors, or solids. In a non-linear medium, e…
Millisecond coherence in a superconducting qubit
Aaron Somoroff, Quentin Ficheux, Raymond A. Mencia +3
Increasing the degree of control over physical qubits is a crucial component of quantum computing research. We report a superconducting qubit of fluxonium type with the Ramsey cohe…