100 citations · 297 across the 13 of their papers we have counts for
15 papers
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…
Tuning the inductance of Josephson junction arrays without SQUIDs
Roman Kuzmin, Nitish Mehta, Nicholas Grabon +1
It is customary to use arrays of superconducting quantum interference devices (SQUIDs) for implementing magnetic field-tunable inductors. Here, we demonstrate an equivalent tunabil…
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…