Towards a Quantum Memory assisted MDI-QKD node

ORAL

Abstract

The creation of large quantum network that permits the communication of quantum states and the secure distribution of cryptographic keys requires multiple operational quantum memories. In this work we present our progress towards building a prototypical quantum network that performs the memory-assisted measurement device independent QKD protocol [1,2]. Currently our network combines the quantum part of the BB84 protocol with room-temperature quantum memory operation, while still maintaining relevant quantum bit error rates for single-photon level operation [3]. We will also discuss our efforts to use a network of two room temperature quantum memories, receiving, storing and transforming randomly polarized photons in order to realize Bell state measurements. [1] New Journal of Physics 16, 043005 (2014) [2] Phys. Rev. A 89, 012301 (2014) [3] arXiv:1609.08676

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Authors

  • Mehdi Namazi

    Stony Brook University, Physics department, Stony Brook University, stony brook university, State Univ of NY- Stony Brook

  • Giuseppe Vallone

    University of Padova

  • bertus jordaan

    Stony Brook University, Physics department, Stony Brook University, stony brook university

  • connor goham

    Stony Brook University, stony brook university

  • Reihaneh Shahrokhshahi

    Stony Brook University

  • Paolo Villoresi

    University of Padova

  • Eden Figueroa

    Stony Brook University, Physics department, Stony Brook University, stony brook university, State Univ of NY- Stony Brook