Non-Hermitian description of a superconducting phase qubit measurement

Abstract

We present an approach based on a non-Hermitian Hamiltonian to describe the process of measurement by tunneling of a phase qubit state. We derive simple analytical expressions which describe the dynamics of measurement, and compare our results with those experimentally available.

8 pages, 4 figures

References in corpus (4)

• Uncollapsing of a quantum state in a superconducting phase qubit
• State tomography of capacitively shunted phase qubits with high fidelity
• Coherence of a Josephson phase qubit under partial-collapse measurement
• Quantum efficiency of binary-outcome detectors of solid-state qubits

Cited by in corpus (3)

• Theory of superconductivity with non-Hermitian and parity-time reversal symmetric cooper pairing symmetry
• Quantum search using non-Hermitian adiabatic evolution
• Superradiance Transition in Graphene