All Publications


  • Engineering a Kerr-Based Deterministic Cubic Phase Gate via Gaussian Operations. Physical review letters Yanagimoto, R., Onodera, T., Ng, E., Wright, L. G., McMahon, P. L., Mabuchi, H. 2020; 124 (24): 240503

    Abstract

    We propose a deterministic, measurement-free implementation of a cubic phase gate for continuous-variable quantum information processing. In our scheme, the applications of displacement and squeezing operations allow us to engineer the effective evolution of the quantum state propagating through an optical Kerr nonlinearity. Under appropriate conditions, we show that the input state evolves according to a cubic phase Hamiltonian, and we find that the cubic phase gate error decreases inverse quartically with the amount of quadrature squeezing, even in the presence of linear loss. We also show how our scheme can be adapted to deterministically generate a nonclassical approximate cubic phase state with high fidelity using a ratio of native nonlinearity to linear loss of only 10^{-4}, indicating that our approach may be experimentally viable in the near term even on all-optical platforms, e.g., using quantum solitons in pulsed nonlinear nanophotonics.

    View details for DOI 10.1103/PhysRevLett.124.240503

    View details for PubMedID 32639814

  • Adiabatic Fock-state-generation scheme using Kerr nonlinearity PHYSICAL REVIEW A Yanagimoto, R., Ng, E., Onodera, T., Mabuchi, H. 2019; 100 (3)
  • Modeling light shifts in optical lattice clocks PHYSICAL REVIEW A Nemitz, N., Jorgensen, A., Yanagimoto, R., Bregolin, F., Katori, H. 2019; 99 (3)
  • Decomposed description of Ramsey spectra under atomic interactions PHYSICAL REVIEW A Yanagimoto, R., Nemitz, N., Bregolin, F., Katori, H. 2018; 98 (1)