Passively stable distribution of polarisation entanglement over 192 km of deployed optical fibre
نویسندگان
چکیده
منابع مشابه
Teleportation of entanglement over 143 km.
As a direct consequence of the no-cloning theorem, the deterministic amplification as in classical communication is impossible for unknown quantum states. This calls for more advanced techniques in a future global quantum network, e.g., for cloud quantum computing. A unique solution is the teleportation of an entangled state, i.e., entanglement swapping, representing the central resource to rel...
متن کاملTransmission experiment of multi-gigabit coherent optical OFDM systems over 1000 km SSMF fibre
Introduction: Orthogonal-frequency-division-multiplexing (OFDM) is a special form of multicarrier modulation where a single data stream is transmitted over a number of lower rate orthogonal subcarriers [1]. Such a format has been widely implemented in various digital communication standards. Recently we proposed an equivalent optical multicarrier modulation format, called coherent optical OFDM ...
متن کاملEffect of Nonlinear Phase Variation in Optical Millimetre Wave Radio over Fibre Systems
In this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave RoF) system that uses a dual drive Mach Zehnder modulator (DD-MZM), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. The input to the DD-MZM are binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (8-PSK) and...
متن کاملFree-Space distribution of entanglement and single photons over 144 km
3 Max-Planck-Institut für Quantenoptik, D-85748 Garching, Germany 4 Department für Physik, Ludwig-Maximilians University, D-80799 Munich, Germany 5 European Space Agency, 2200 AG Noordwijk, The Netherlands 6 Business Unit Quantum Technology, ARC Seibersdorf Research GmbH, A-1220 Vienna, Austria 7 Department of Electrical and Electronic Engineering, University of Bristol, Bristol, BS8 1UB, Unite...
متن کاملDistribution of time-energy entanglement over 100 km fiber using superconducting single-photon detectors.
In this letter, we report an experimental realization of distributing entangled photon pairs over 100 km of dispersion-shifted fiber. In the experiment, we used a periodically poled lithium niobate waveguide to generate the time-energy entanglement and superconducting single-photon detectors to detect the photon pairs after 100 km. We also demonstrate that the distributed photon pairs can still...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: npj Quantum Information
سال: 2020
ISSN: 2056-6387
DOI: 10.1038/s41534-019-0238-8