Work

Qubit quantum channels: A characteristic function approach

Year: 2007

Type: article

Abstract: A characterization of qubit quantum channels is introduced. In analogy to what happens in the context of bosonic channels we exploit the possibility of representing the states of the system in terms of characteristic function. The latter are functions of noncommuting variables (Grassmann variables) and are defined in terms of generalized displacement operators. In this context we introduce the set of Gaussian channels and show that they share similar properties with the corresponding bosonic counterpart.

Source: Physical Review A

DOI: 10.1103/physreva.76.042331

Authors: Filippo Caruso, Vittorio Giovannetti

Institutions: Scuola Normale Superiore, National Enterprise for NanoScience and NanoTechnology

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1981717845

FWCI: 0.787

Cites: 43

Cited by: 10

Related to: 10