2005/05/31 by Aditi Sen, Aditi Sen De, Ujjwal Sen +4 · 1 citation
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum Mechanics and Applications #cond-mat.stat-mech #quant-ph
paper · pdf · doi:10.1103/physrevlett.95.260503
published as Phys. Rev. Lett. 95, 260503 (2005) · 4 pages, 3 eps figures, RevTeX4; v2: discussions added, small changes, published version
openalex publication_date 2005/12/21 · arxiv created 2006/01/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We consider the capacity of classical information transfer for noiseless quantum channels carrying a finite average number of massive bosons and fermions. The maximum capacity is attained by transferring the Fock states generated from the grand-canonical ensemble. Interestingly, the channel capacity for a Bose gas indicates the onset of Bose-Einstein condensation, by changing its qualitative behavior at the criticality, while for a channel carrying weakly attractive fermions, it exhibits the signatures of Bardeen-Cooper-Schrieffer transition. We also show that, for noninteracting particles, fermions are better carriers of information than bosons.