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Bipartite Entanglement for Two Electronic Qubits in Double Photoionization of Xeon


  • Department of Physics, Asansol Girls’ College, Asansol – 713304, West Bengal, India


Objectives: To study of entanglement between two electronic qubits,without observing spin orbit interaction (SOI), produced by double photo ionization from Xeon atom following the absorption of a photon. Methods: In absence of SOI, Russel-Salunders coupling (L-S coupling) is applicable. As the estimations of entanglement we have considered Peres- Horodecki condition and negativity. In case of L-Scoupling, all the properties of electronic qubits are predicted merely with the knowledge of the spins of the target atom, the residual photoion, emitted electrons and the state of polarization of the absorbed photon. Findings: We have found that the electronic qubits may be totally entangled, partially entangled or separable depending on spin states of target Xe, residualdication Xe2+,emitted electrons and the state of polarization of incident photon as well as of the direction sspin quantization and ejection of the photoelectrons. Applications/ Improvements: Studies of quantumen tanglement and its paradoxical properties hold the key to various Quantum information (QI) tasks such as quantum teleportation, quantum cryptography and quantum computer technology.


Density Operator PACS No. 32.30, L-S Coupling, Negativity, Peres-Horodecki Condition.

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  • Nielsen MA, Chuang IL.Quantum Computation and Quantum Information. Cambridge: Cambridge University Press; 2000.p. 1–29. PMid:10727740
  • Alber G, Berth T, Horodecki M, Horodecki P, Horodecki R, Rötteler M, Weinfurter H, Werner R, Zeilinger A. Quantum Information: An Introduction to basic Theoretical Concepts and Experiments. Spinger; 2000 .
  • Shumacher B. Physical review A. 1995; 51 (4): 4. Horodecki M, Horodecki P, Horodecki R. Reviews of modern physics.2009. Crossref
  • Carmichael JH, Glauber RJ, Scully MO. Directions in Quantum Optics: A Collection of Papers Dedicated to the Memory of Dan Walls. 2001.p. 149–64.
  • Barbieri M, Martini FD, Nepi GD, Mataloni P, Ariano MDG, Macchiavello C.Physics ReviewLetter. 2003.
  • Bouwmeester D, Ekert AK, Zeilinger A. The physics of quantum information. 2000.
  • Loss D, DiVincenzo DP.Quantum Computation with Quantum Dots. Physical Review A. 1998; 57 (1): Crossref
  • McGuire JH.Multiple-Electron Excitation, Ionization, and Transfer in High-Velocity Atomic and Molecular Collisions. Advances In Atomic, Molecular, Optical Physics. 1991; 29: 217–323. Crossref
  • 10.Chandra N. Double photoionization of polyatomic molecules by arbitrarily polarized light: theory. Journal of Physics B: Atomic, Molecular, Optical Physics. 2004; 37 (19): Crossref
  • Chandra N, Ghosh R. Quantum Entanglement in Electron Optics. Springer; 2013. Crossref
  • Peres A. Separability Criterion for Density Matrices. Physical Review Letters. 1996; 77 (8): Crossref
  • Galindo A, Delgado MAM. Reviews of Modern Physics. 2002;74 (2): Crossref
  • Wei TC, Nemoto K, Goldbart PM, Kwiat PG, Munro WJ, Verstraete F.Maximal entanglement versus entropy for mixed quantum states. Physical Review A. 2003. Crossref
  • Bennett CH, DiVincenzo DP, Smolin J, Wootters WK. Good quantum error-correcting codes exist. Physical Review A. 1966; 54 (2):
  • Horodecki M, Horodecki P, Horodecki R.Separability of mixed states: necessary and sufficient conditions. Crossref
  • Chandra. N. Chemical Physics. 1986; 108 (2): 179–334.
  • Blum K.Density Matrix Theory and Applications.1996.
  • Breit G, Bethe H. Ingoing Waves in Final State of Scattering Problems. Physical review journals archive. 1954.
  • Manson ST, Starace AF.Reviews of Modern Physics. 1982. Crossref
  • Edmonds AR. Angular Momentum in Quantum Mechanics. 1974.
  • Varshalovich DA, Moskalev AN, Khersonskii VK.Quantum Theory of Angular Momentum. 1989.
  • Shalit AD, Talmi I.Nuclear Shell Theory. 2004.
  • Bannett CH, Brassard C, Jozsa R, Peres A, Wooters WK. Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels. Physical Review Letters. 1993. Crossref PMid:10053414
  • Ishizaka S, Hiroshima T. Maximally entangled mixed states under nonlocal unitary operations in two qubits. Physical Review A. 2000. Crossref


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