Demonstration of quantum Zeno effect in a superconducting phase qubit

TL;DR

This paper demonstrates the observation of the quantum Zeno effect in a superconducting phase qubit using two feasible measurement schemes, providing a direct implementation relevant for quantum computing.

Contribution

It introduces a practical approach to observe the quantum Zeno effect in superconducting qubits with two measurement methods, supported by simulations.

Findings

Quantum Zeno effect observed in superconducting phase qubit

Two measurement schemes successfully demonstrate the effect

Simulation confirms the feasibility of the proposed methods

Abstract

Quantum Zeno effect is a significant tool in quantum manipulating and computing. We propose its observation in superconducting phase qubit with two experimentally feasible measurement schemes. The conventional measurement method is used to achieve the proposed pulse and continuous readout of the qubit state, which are analyzed by projection assumption and Monte Carlo wave-function simulation, respectively. Our scheme gives a direct implementation of quantum Zeno effect in a superconducting phase qubit.