Programmable and sequential Gaussian gates in a loop-based single-mode photonic quantum processor

Abstract

A quantum processor to import, process, and export optical quantum states is a common core technology enabling various photonic quantum information processing. However, there has been no photonic processor which is simultaneously universal, scalable, and programmable. Here, we report on an original loop-based single-mode versatile photonic quantum processor which is designed to be universal, scalable, and programmable. Our processor can perform arbitrarily many steps of programmable quantum operations on a given single-mode optical quantum state by time-domain processing in a dynamically controlled loop-based optical circuit. We use this processor to demonstrate programmable single-mode Gaussian gates and multi-step squeezing gates. In addition, we prove that the processor can perform universal quantum operations by injecting appropriate ancillary states and also be straightforwardly extended to a multi-mode processor. These results show that our processor is programmable, scalable, and potentially universal, leading to be suitable for general-purpose applications.

arXiv comment17 pages, 6 figures. 5 pages, 3 figures in the supplementary materials

References in corpus (29)

• Quantum sensing
• Gaussian Quantum Information
• Quantum computation over continuous variables
• Universal Quantum Computation with Continuous-Variable Cluster States
• Ultra-Large-Scale Continuous-Variable Cluster States Multiplexed in the Time Domain
• Squeezing as an irreducible resource
• Time-Domain Multiplexed 2-Dimensional Cluster State: Universal Quantum Computing Platform
• Deterministic generation of a two-dimensional cluster state
• Efficient Classical Simulation of Continuous Variable Quantum Information Processes
• Continuous-variable quantum neural networks
• Distributed quantum sensing in a continuous variable entangled network
• Perspective: Toward large-scale fault-tolerant universal photonic quantum computing
• Generation of one-million-mode continuous-variable cluster state by unlimited time-domain multiplexing
• Discrimination of the binary coherent signal: Gaussian-operation limit and simple non-Gaussian near-optimal receivers
• Demonstration of unconditional one-way quantum computations for continuous variables
• Gate sequence for continuous variable one-way quantum computation
• Machine learning method for state preparation and gate synthesis on photonic quantum computers
• Implementation of a quantum cubic gate by adaptive non-Gaussian measurement
• Universal Quantum Computing with Measurement-Induced Continuous-Variable Gate Sequence in a Loop-Based Architecture
• Demonstration of deterministic and high fidelity squeezing of quantum information
• One-hundred step measurement-based quantum computation multiplexed in the time domain with 25 MHz clock frequency
• Quantum simulation of quantum field theory using continuous variables
• On-demand photonic entanglement synthesizer
• Demonstration of a universal one-way quantum quadratic phase gate
• Parameters estimation in quantum optics
• Realization of a collective decoding of codeword states
• Continuous-variable gate decomposition for the Bose-Hubbard model
• Gates for one-way quantum computation based on Einstein-Podolsky-Rosen entanglement
• Continuous-Variable Deep Quantum Neural Networks for Flexible Learning of Structured Classical Information

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