33 citations · 53 across the 4 of their papers we have counts for
4 papers
Agnostic Phase Estimation
Xingrui Song, Flavio Salvati, Chandrashekhar Gaikwad +3
The goal of quantum metrology is to improve measurements' sensitivities by harnessing quantum resources. Metrologists often aim to maximize the quantum Fisher information, which bo…
Entanglement assisted probe of the non-Markovian to Markovian transition in open quantum system dynamics
Chandrashekhar Gaikwad, Daria Kowsari, Carson Brame +8
We utilize a superconducting qubit processor to experimentally probe non-Markovian dynamics of an entangled qubit pair. We prepare an entangled state between two qubits and monitor…
Superconducting Non-Reciprocity Based on Time-Modulated Coupled-Resonator Systems
Yi Zhuang, Chandrashekhar Gaikwad, Daria Kowsari +2
We present a unified approach for designing a diverse range of superconducting non-reciprocal components, including circulators, isolators, and uni-directional amplifiers, based on…
Observing Parity Time Symmetry Breaking in a Josephson Parametric Amplifier
Chandrashekhar Gaikwad, Daria Kowsari, Weijian Chen +1
A coupled two-mode system with balanced gain and loss is a paradigmatic example of an open quantum system that can exhibit real spectra despite being described by a non-Hermitian H…