Correlated quantum measurement of a solid-state qubit

Abstract

We propose a solid-state experiment to study the process of continuous quantum measurement of a qubit state. The experiment would verify that an individual qubit stays coherent during the process of measurement (in contrast to the gradual decoherence of the ensemble-averaged density matrix) thus confirming the possibility of the qubit purification by continuous measurement. The experiment can be realized using quantum dots, single-electron transistors, or SQUIDs.

5 pages

References in corpus (4)

• Continuous quantum measurement of a double dot
• Selective quantum evolution of a qubit state due to continuous measurement
• Continuous quantum measurement of two coupled quantum dots using a point contact: A quantum trajectory approach
• Output spectrum of a detector measuring quantum oscillations

Cited by in corpus (9)

• Quantum feedback control of a solid-state qubit
• Spectrum of qubit oscillations from Bloch equations
• Nonideal quantum detectors in Bayesian formalism
• Quantum trajectories for the realistic measurement of a solid-state charge qubit
• Stochastic Bloch-Redfield theory: quantum jumps in a solid-state environment
• Continuous measurement of entangled qubits
• Model for monitoring of a charge qubit using a radio-frequency quantum point contact including experimental imperfections
• Continuous Quantum Error Correction Through Local Operations
• Persistent Rabi oscillations probed via low-frequency noise correlation