Generation of multiphoton entangled quantum states by means of integrated frequency combs

Complex optical photon states with entanglement shared among several modes are critical to improving our fundamental understanding of quantum mechanics and have applications for quantum information processing, imaging, and microscopy. We demonstrate that optical integrated Kerr frequency combs can be used to generate several bi- and multiphoton entangled qubits, with direct applications for quantum communication and computation. Our method is compatible with contemporary fiber and quantum memory infrastructures and with chip-scale semiconductor technology, enabling compact, low-cost, and scalable implementations. The exploitation of integrated Kerr frequency combs, with their ability to generate multiple,…

• NS
  Natural Sciences and Engineering Research Council of Canada
• RE
  Research Executive Agency

  Awards: 625466, 627478
• AR
  Australian Research Council
• FD
  Fonds de recherche du Québec – Nature et technologies