580 citations · 3k across the 56 of their papers we have counts for
7 papers · 2 filters
Gaussian breeding for encoding a qubit in propagating light
Kan Takase, Kosuke Fukui, Akito Kawasaki +5
Practical quantum computing requires robust encoding of logical qubits in physical systems to protect fragile quantum information. Currently, the lack of scalability limits the log…
Non-Gaussian state generation with time-gated photon detection
Tatsuki Sonoyama, Kazuma Takahashi, Baramee Charoensombutamon +9
Non-Gaussian states of light, which are essential in fault-tolerant and universal optical quantum computation, are typically generated by a heralding scheme using photon detectors.…
Nonlinear feedforward enabling quantum computation
Atsushi Sakaguchi, Shunya Konno, Fumiya Hanamura +9
Measurement-based quantum computation with optical time-domain multiplexing is a promising method to realize a quantum computer from the viewpoint of scalability. Fault tolerance a…
Quantum arbitrary waveform generator
Kan Takase, Akito Kawasaki, Byung Kyu Jeong +13
Controlling the waveform of light is the key for a versatile light source in classical and quantum electronics. Although pulse shaping of classical light is a mature technique and…
Generation of Highly Pure Single-Photon State at Telecommunication Wavelength
Akito Kawasaki, Kan Takase, Takefumi Nomura +8
Telecommunication wavelength with well-developed optical communication technologies and low losses in the waveguide are advantageous for quantum applications. However, an experimen…
Generation of Schrödinger cat states with Wigner negativity using continuous-wave low-loss waveguide optical parametric amplifier
Kan Takase, Akito Kawasaki, Byung Kyu Jeong +13
Continuous-wave (CW) squeezed light is used in generation of various optical quantum states thus is a fundamental resource of fault-tolerant universal quantum computation using opt…
Analysis of optical quantum state preparation using photon detectors in the finite-temporal-resolution regime
Tatsuki Sonoyama, Warit Asavanant, Kosuke Fukui +3
Quantum state preparation is important for quantum information processing. In particular, in optical quantum computing with continuous variables, non-Gaussian states are needed for…