Equally distant, partially entangled alphabet states for quantum channels

ZIMAN, Mario and Vladimír BŮŽEK. Equally distant, partially entangled alphabet states for quantum channels. Physical Review A. USA: American Physical Society, 2000, vol. 62, No 5, p. 2301-2307. ISSN 1050-2947.

Basic information

• Original name: Equally distant, partially entangled alphabet states for quantum channels
• Authors: ZIMAN, Mario and Vladimír BŮŽEK.
• Edition: Physical Review A, USA, American Physical Society, 2000, 1050-2947.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10301 Atomic, molecular and chemical physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 2.831
• RIV identification code: RIV/00216224:14330/00:00002893
• Organization unit: Faculty of Informatics
• Keywords in English: COMMUNICATION
• Tags: communication

Abstract

Each Bell state has the property that by performing just local operations on one qubit, the complete Bell basis can be generated. That is, slates generated by local operations are totally distinguishable. This remarkable property is due to maximal quantum entanglement between the two particles. We present a set of local unitary transformations that generate out of partially entangled two-qubit state a set of four maximally distinguishable states that are mutually equally distant. We discuss quantum dense coding based on these alphabet states.

Links

• GA201/98/0369, research and development project: Name: Informatika jako třetí metodologie

Investor: Czech Science Foundation, Informatics as the third methodology

• MSM 143300001, plan (intention): Name: Nesekvenční modely výpočtů - kvantové a souběžné distribuované modely výpočetních procesů

Investor: Ministry of Education, Youth and Sports of the CR, Non-sequential Models of Computing -- Quantum and Concurrent Distributed Models of Computing