Continuous phase preserving measurement of a quantum N-level system
ORAL
Abstract
We present an analysis of the continuous monitoring of a quantum N-level system using phase-preserving measurements. In recent times, many experiments, like those with superconducting qubits, involve interacting such a system to a resonator and then collecting signals via phase-preserving amplifiers. Using the measured quadratures at every time step, we construct a stochastic master equation, describing the quantum trajectories of the system. We use the dynamical equations that follow from the stochastic master equation, to discuss the realizations of the formalism for a few special quantum systems.
–
Presenters
-
Debmalya Das
University of Rochester
Authors
-
Debmalya Das
University of Rochester
-
John Steinmetz
University of Rochester
-
Andrew N Jordan
University of Rochester, Department of Physics and Astronomy, University of Rochester
-
Irfan Siddiqi
Lawrence Berkeley National Laboratory, University of California, Berkeley, Univ of California - Berkeley, Univ of California – Berkeley, Quantum Nanoelectronics Lab, UC Berkeley, Physics, University of California, Berkeley, Quantum Nanoelectronics Laboratory, Dept. of Physics, University of California, Berkeley