Demonstration of a quantum controlled-NOT gate in the telecommunications band

Jun Chen, Joseph B. Altepeter, Milja Medic, Kim Fook Lee, Burc Gokden, Robert H. Hadfield, Sae Woo Nam, Prem Kumar

Research output: Contribution to journalArticle

Abstract

We present the first quantum controlled-not (CNOT) gate realized using a fiber-based indistinguishable photon-pair source in the 1.55 mu m telecommunications band. Using this free-space CNOT gate, all four Bell states are produced and fully characterized by performing quantum-state tomography, demonstrating the gate's unambiguous entangling capability and high fidelity. Telecom-band operation makes this CNOT gate particularly suitable for quantum-information-processing tasks that are at the interface of quantum communication and linear optical quantum computing. © 2008 The American Physical Society

Original languageEnglish
Article number133603
Pages (from-to)-
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number13
DOIs
Publication statusPublished - 4 Apr 2008

Cite this

Chen, J., Altepeter, J. B., Medic, M., Lee, K. F., Gokden, B., Hadfield, R. H., ... Kumar, P. (2008). Demonstration of a quantum controlled-NOT gate in the telecommunications band. Physical Review Letters, 100(13), -. [133603]. https://doi.org/10.1103/PhysRevLett.100.133603
Chen, Jun ; Altepeter, Joseph B. ; Medic, Milja ; Lee, Kim Fook ; Gokden, Burc ; Hadfield, Robert H. ; Nam, Sae Woo ; Kumar, Prem. / Demonstration of a quantum controlled-NOT gate in the telecommunications band. In: Physical Review Letters. 2008 ; Vol. 100, No. 13. pp. -.
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Chen, J, Altepeter, JB, Medic, M, Lee, KF, Gokden, B, Hadfield, RH, Nam, SW & Kumar, P 2008, 'Demonstration of a quantum controlled-NOT gate in the telecommunications band', Physical Review Letters, vol. 100, no. 13, 133603, pp. -. https://doi.org/10.1103/PhysRevLett.100.133603

Demonstration of a quantum controlled-NOT gate in the telecommunications band. / Chen, Jun; Altepeter, Joseph B.; Medic, Milja; Lee, Kim Fook; Gokden, Burc; Hadfield, Robert H.; Nam, Sae Woo; Kumar, Prem.

In: Physical Review Letters, Vol. 100, No. 13, 133603, 04.04.2008, p. -.

Research output: Contribution to journalArticle

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Chen J, Altepeter JB, Medic M, Lee KF, Gokden B, Hadfield RH et al. Demonstration of a quantum controlled-NOT gate in the telecommunications band. Physical Review Letters. 2008 Apr 4;100(13):-. 133603. https://doi.org/10.1103/PhysRevLett.100.133603