Logical states for fault-tolerant quantum computation with propagating light
S Konno, W Asavanant, F Hanamura, H Nagayoshi… - Science, 2024 - science.org
To harness the potential of a quantum computer, quantum information must be protected
against error by encoding it into a logical state that is suitable for quantum error correction …
against error by encoding it into a logical state that is suitable for quantum error correction …
Nonlinear feedforward enabling quantum computation
A Sakaguchi, S Konno, F Hanamura… - Nature …, 2023 - nature.com
Measurement-based quantum computation with optical time-domain multiplexing is a
promising method to realize a quantum computer from the viewpoint of scalability. Fault …
promising method to realize a quantum computer from the viewpoint of scalability. Fault …
Gottesman-Kitaev-Preskill qubit synthesizer for propagating light
Practical quantum computing requires robust encoding of logical qubits in physical systems
to protect fragile quantum information. Currently, the lack of scalability limits the logical …
to protect fragile quantum information. Currently, the lack of scalability limits the logical …
Non-Gaussian quantum state generation by multi-photon subtraction at the telecommunication wavelength
M Endo, R He, T Sonoyama, K Takahashi… - Optics …, 2023 - opg.optica.org
In the field of continuous-variable quantum information processing, non-Gaussian states
with negative values of the Wigner function are crucial for the development of a fault-tolerant …
with negative values of the Wigner function are crucial for the development of a fault-tolerant …
All-optical quantum computing using cubic phase gates
N Budinger, A Furusawa, P van Loock - Physical Review Research, 2024 - APS
If suitable quantum optical interactions were available, transforming the field mode operators
in a nonlinear fashion, the all-photonics platform could be one of the strongest contenders …
in a nonlinear fashion, the all-photonics platform could be one of the strongest contenders …
Error-corrected quantum repeaters with Gottesman-Kitaev-Preskill qudits
The Gottesman-Kitaev-Preskill (GKP) code offers the possibility to encode higher-
dimensional qudits into individual bosonic modes with, for instance, photonic excitations …
dimensional qudits into individual bosonic modes with, for instance, photonic excitations …
Riemannian optimization of photonic quantum circuits in phase and Fock space
We propose a framework to design and optimize generic photonic quantum circuits
composed of Gaussian objects (pure and mixed Gaussian states, Gaussian unitaries …
composed of Gaussian objects (pure and mixed Gaussian states, Gaussian unitaries …
Gaussian breeding for encoding a qubit in propagating light
Practical quantum computing requires robust encoding of logical qubits in physical systems
to protect fragile quantum information. Currently, the lack of scalability limits the logical …
to protect fragile quantum information. Currently, the lack of scalability limits the logical …
Enhanced entanglement and quantum teleportation of two-mode squeezed vacuum state via multistage non-Gaussian operations
The improvement of quantum features and processes, prominent as entanglement and
quantum teleportation, of the two-mode squeezed vacuum state (TMSVS) in the small …
quantum teleportation, of the two-mode squeezed vacuum state (TMSVS) in the small …
A quadratic speedup in the optimization of noisy quantum optical circuits
Linear optical quantum circuits with photon number resolving (PNR) detectors are used for
both Gaussian Boson Sampling (GBS) and for the preparation of non-Gaussian states such …
both Gaussian Boson Sampling (GBS) and for the preparation of non-Gaussian states such …