Teleportation between distant qudits via scattering of mobile qubits

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.042318· OSTI ID:21408578

Ciccarello, Francesco; Zarcone, Michelangelo ^[1]; Bose, Sougato ^[2]

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1. CNISM and Dipartimento di Fisica e Tecnologie Relative, Universita degli Studi di Palermo, Viale delle Scienze, Edificio 18, I-90128 Palermo (Italy)
2. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)

We consider a one-dimensional structure where noninteracting spin-s scattering centers, such as quantum impurities or multilevel atoms, are embedded at given positions. We show that the injection into the structure of unpolarized flying qubits, such as electrons or photons, along with path detection suffice to accomplish spin-state teleportation between two centers via a third ancillary one. No action over the internal quantum state of both the spin-s particles and the flying qubits is required. The protocol enables the transfer of quantum information between well-separated static entities in nanostructures by exploiting a very low control mechanism, namely scattering.

• OSTI ID: 21408578
• Journal Information: Physical Review. A, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.042318; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
DETECTION
ELECTRONS
NANOSTRUCTURES
PARTICLES
PHOTONS
QUANTUM TELEPORTATION
QUBITS
SCATTERING
SPIN
ANGULAR MOMENTUM
BOSONS
ELEMENTARY PARTICLES
FERMIONS
INFORMATION
LEPTONS
MASSLESS PARTICLES
PARTICLE PROPERTIES
QUANTUM INFORMATION