Observation of quantum interference as a function of Berry's phase in a complex Hadamard optical network

Abstract

Emerging models of quantum computation driven by multi-photon quantum interference, while not universal, may offer an exponential advantage over classical computers for certain problems. Implementing these circuits via geometric phase gates could mitigate requirements for error correction to achieve fault tolerance while retaining their relative physical simplicity. We report an experiment in which a geometric phase is embedded in an optical network with no closed-loops, enabling quantum interference between two photons as a function of the phase.

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References in corpus (25)

• Silica-on-Silicon Waveguide Quantum Circuits
• Quantum walks of correlated particles
• Holonomic Quantum Computation
• Geometric quantum computation with NMR
• Geometric Manipulation of Trapped Ions for Quantum Computation
• On mutually unbiased bases
• Manipulating multi-photon entanglement in waveguide quantum circuits
• Observation of Berry's Phase in a Solid State Qubit
• Quantum and classical correlations in waveguide lattices
• Non-Abelian Berry connections for quantum computation
• Geometric phase in open systems
• Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit
• Berry phase for a spin 1/2 in a classical fluctuating field
• Multimode quantum interference of photons in multiport integrated devices
• Experimental demonstration of the stability of Berry's phase for a spin-1/2 particle
• Off-Diagonal Geometric Phases
• Robustness of non-abelian holonomic quantum gates against parametric noise
• Fast path and polarisation manipulation of telecom wavelength single photons in lithium niobate waveguide devices
• Spin-1/2 geometric phase driven by decohering quantum fields
• High-fidelity operation of quantum photonic circuits
• Measurement of geometric phase for mixed states using single photon interferometry
• Error tolerance of the BosonSampling model for linear optics quantum computing
• Holonomic quantum computation in the presence of decoherence
• Nonlinear behavior of geometric phases induced by photon pairs
• Entanglement gauge and the non-Abelian geometric phase with two photonic qubits

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