Programmable photonic time circuits for highly scalable universal unitaries
arXiv:2305.17632 · doi:10.1103/PhysRevLett.132.103801
Abstract
Programmable photonic circuits (PPCs) have garnered substantial interest in achieving deep learning accelerations and universal quantum computations. Although photonic computation using PPCs offers critical advantages, including ultrafast operation, energy-efficient matrix calculation and room-temperature quantum states, its poor scalability impedes the integration required for industrial applications. This challenge arises from the temporally one-shot operation using propagating light in conventional PPCs, which leads to the light-speed increase of device footprints. Here we propose a concept of programmable photonic time circuits, which employ time-cycle-based computations analogous to the gate cycling in the von Neumann architecture and quantum computation. As a building block, we develop a reconfigurable SU(2) time gate composed of two resonators, which have tunable resonances and are coupled through time-coded dual-channel gauge fields. We demonstrate universal U(N) operations with high fidelity using the systematic assembly of the SU(2) time gates, achieving improved scalability from O(N^2) to O(N) in both the footprint and gate number. This result opens a pathway to industrial-level PPC implementation in very large-scale integration.
arXiv comment46 pages, 6 figures
References in corpus (27)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Deep Learning with Coherent Nanophotonic Circuits
- Imaging topological edge states in silicon photonics
- Robust optical delay lines via topological protection
- Integrated Photonic Quantum Technologies
- Universal Linear Optics
- Large-scale neuromorphic optoelectronic computing with a reconfigurable diffractive processing unit
- Qudits and high-dimensional quantum computing
- Ultrafast and energy-efficient all-optical switching with graphene-loaded deep-subwavelength plasmonic waveguides
- Modulational instability in nonlocal nonlinear Kerr media
- Topology of photonic time-crystals
- Experimentally realized in situ backpropagation for deep learning in nanophotonic neural networks
- Hyperbolic Lattices in Circuit Quantum Electrodynamics
- 422 Million Q Planar Integrated All-Waveguide Resonator with a 3.4 Billion Absorption Limited Q and Sub-MHz Linewidth
- Amplified Emission by Atoms and Lasing in Photonic Time Crystals
- Perspective: Toward large-scale fault-tolerant universal photonic quantum computing
- The laminar-turbulent transition in a fibre laser
- Double-slit time diffraction at optical frequencies
- High-speed programmable photonic circuits in a cryogenically compatible, visible-NIR 200 mm CMOS architecture
- Reconfigurable quantum photonics with on-chip detectors
- Stochasticity, periodicity and coherent structures in partially mode-locked fibre lasers
- Topological hyperbolic lattices
- Arbitrary linear transformations for photons in the frequency synthetic dimension
- Maxwell-Schroedinger Equation for Polarized Light and Evolution of the Stokes Parameters
- Heavy tails and pruning in programmable photonic circuits
- Unidirectional scattering with spatial homogeneity using photonic time disorder
- Acceleration toward polarization singularity inspired by relativistic ExB drift