Complexity and Control in Quantum Photonics
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Beschreibung
This work explores the scope and flexibility afforded by integrated quantum photonics, both in terms of practical problem-solving, and for the pursuit of fundamental science. The author demonstrates and fully characterizes a two-qubit quantum photonic chip, capable of arbitrary two-qubit state preparation. Making use of the unprecedented degree of reconfigurability afforded by this device, a novel variation on Wheeler’s delayed choice experiment is implemented, and a new technique to obtain nonlocal statistics without a shared reference frame is tested. Also presented is a new algorithm for quantum chemistry, simulating the helium hydride ion. Finally, multiphoton quantum interference in a large Hilbert space is demonstrated, and its implications for computational complexity are examined.
This work explores the scope and flexibility afforded by integrated quantum photonics, both in terms of practical problem-solving, and for the pursuit of fundamental science. The author demonstrates and fully characterizes a two-qubit quantum photonic chip, capable of arbitrary two-qubit state preparation. Making use of the unprecedented degree of reconfigurability afforded by this device, a novel variation on Wheeler’s delayed choice experiment is implemented, and a new technique to obtain nonlocal statistics without a shared reference frame is tested. Also presented is a new algorithm for quantum chemistry, simulating the helium hydride ion. Finally, multiphoton quantum interference in a large Hilbert space is demonstrated, and its implications for computational complexity are examined.
Nominated as an outstanding Ph.D. thesis by the University of Bristol, UK Gives detailed background to experimental results from ten journal articles Contributes to areas as diverse as time-correlated single photon counting, integrated photonics, quantum simulation, Boson sampling, quantum walks, and wave-particle duality Includes supplementary material: sn.pub/extras
Autor*in
Peter Shadbolt
Themen in »Complexity and Control in Quantum Photonics«
Bell test Boson sampling Delayed choice Integrated quantum optics Integrated quantum photonics Quantum optics and photonics Quantum simulation Simulation algorithm for quantum chemistry Two-bit quantum photonic chip Waveguide chip