Work

Coupling mechanism between microscopic two-level system and superconducting qubits

Year: 2011

Type: article

Abstract: We propose a scheme to clarify the coupling nature between superconducting Josephson qubits and microscopic two-level systems. Although dominant interest in studying two-level systems was in phase qubits previously, we find that the sensitivity of the generally used spectral method in phase qubits is not sufficient to evaluate the exact form of the coupling. On the contrary, our numerical calculation shows that the coupling strength changes remarkably with the flux bias for a flux qubit, providing a useful tool to investigate the coupling mechanism between the two-level systems and qubits.

Source: Physical Review A

DOI: 10.1103/physreva.84.064301

Authors: Zhen-Tao Zhang, Yang Yu

Institutions: National Laboratory of Solid State Microstructures, Nanjing University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: National Science Foundation

OpenAlex ID: W2132913283

FWCI: 0.885

Cites: 23

Cited by: 6

Related to: 10