Integrated Devices for Quantum Information with Polarization Encoded Qubits

  • Linda Sansoni

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xii
  2. Linda Sansoni
    Pages 1-5
  3. Introduction to the Basic Elements

    1. Front Matter
      Pages 7-7
    2. Linda Sansoni
      Pages 9-22
    3. Linda Sansoni
      Pages 23-28
    4. Linda Sansoni
      Pages 29-42
  4. Integrated Devices for Quantum Information

    1. Front Matter
      Pages 43-43
    2. Linda Sansoni
      Pages 65-84
  5. Quantum Simulation

    1. Front Matter
      Pages 85-85
    2. Linda Sansoni
      Pages 87-96
    3. Linda Sansoni
      Pages 97-109
    4. Linda Sansoni
      Pages 111-131
    5. Linda Sansoni
      Pages 133-136
  6. Back Matter
    Pages 137-140

About this book


Quantum information science has found great experimental success by exploiting single photons. To date, however, the majority of quantum optical experiments use large-scale (bulk) optical elements bolted down to an optical bench, an approach that ultimately limits the complexity and stability of the quantum circuits required for quantum science and technology. The realization of complex optical schemes involving large numbers of elements requires the introduction of waveguide technology to achieve the desired scalability, stability and miniaturization of the device. This thesis reports on surprising findings in the field of integrated devices for quantum information. Here the polarization of the photon is shown to offer a suitable degree of freedom for encoding quantum information in integrated systems. The most important results concern: the quantum interference of polarization entangled photons in an on-chip directional coupler; the realization of a Controlled-NOT (CNOT) gate operating with polarization qubits; the realization of a quantum walk of bosons and fermions in an ordered optical lattice; and the quantum simulation of Anderson localization of bosons and fermions simulated by polarization entangled photons in a disordered quantum walk. The findings presented in this thesis represent an important step towards the integration of a complete quantum photonic experiment in a chip.


Anderson Localization Integrated Devices for Quantum Information Processing Laser Writing Photon Polarization Qubit Polarization Encoding Quantum Information Science and Technology Quantum Simulation Quantum Transport Quantum Walk on a Chip

Authors and affiliations

  • Linda Sansoni
    • 1
  1. 1.Department of PhysicsUniversity of PaderbornPaderbornGermany

Bibliographic information