Hiding Bits in Bell States

Journal Article · Mon Jun 18 00:00:00 EDT 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.86.5807· OSTI ID:40204695

Terhal, Barbara M; DiVincenzo, David P; Leung, Debbie W

We present a scheme for hiding bits in Bell states that is secure even when the sharers, Alice and Bob, are allowed to carry out local quantum operations and classical communication. We prove that the information that Alice and Bob can gain about a hidden bit is exponentially small in n , the number of qubits in each share, and can be made arbitrarily small for hiding multiple bits. We indicate an alternative efficient low-entanglement method for preparing the shared quantum states. We discuss how our scheme can be implemented using present-day quantum optics.

• Sponsoring Organization: (US)
• OSTI ID: 40204695
• Journal Information: Physical Review Letters, Vol. 86, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.86.5807; Othernumber: PRLTAO000086000025005807000001; 055125PRL; PBD: 18 Jun 2001; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
OPTICS
BELL THEOREM
INFORMATION THEORY
QUANTUM MECHANICS