Nonlinear and quantum photonics using integrated optical materials

A Dutt, A Mohanty, AL Gaeta, M Lipson - Nature Reviews Materials, 2024‏ - nature.com
Integrated nonlinear photonics provides transformative capabilities for controlling,
enhancing and manipulating material nonlinearities in miniaturized on-chip platforms. The …

Advances in bosonic quantum error correction with gottesman–kitaev–preskill codes: Theory, engineering and applications

AJ Brady, A Eickbusch, S Singh, J Wu… - Progress in Quantum …, 2024‏ - Elsevier
Encoding quantum information into a set of harmonic oscillators is considered a hardware
efficient approach to mitigate noise for reliable quantum information processing. Various …

Ultrafast second-order nonlinear photonics—from classical physics to non-Gaussian quantum dynamics: a tutorial

M Jankowski, R Yanagimoto, E Ng… - Advances in Optics …, 2024‏ - opg.optica.org
Photonic integrated circuits with second-order (χ (2)) nonlinearities are rapidly scaling to
remarkably low powers. At this time, state-of-the-art devices achieve saturated nonlinear …

Generation of flying logical qubits using generalized photon subtraction with adaptive Gaussian operations

K Takase, F Hanamura, H Nagayoshi, JE Bourassa… - Physical Review A, 2024‏ - APS
The generation of a logical qubit called the Gottesman-Kitaev-Preskill (GKP) qubit in an
optical traveling wave is a major challenge for realizing large-scale universal fault-tolerant …

Mesoscopic ultrafast nonlinear optics—the emergence of multimode quantum non-Gaussian physics

R Yanagimoto, E Ng, M Jankowski, R Nehra… - Optica, 2024‏ - opg.optica.org
Over the last few decades, nonlinear optics has become significantly more nonlinear,
traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear …

Broadband generation and tomography of non-Gaussian states for ultra-fast optical quantum processors

A Kawasaki, R Ide, H Brunel, T Suzuki, R Nehra… - Nature …, 2024‏ - nature.com
Quantum information processors benefit from high clock frequencies to fully harness
quantum advantages before they are lost to decoherence. All-optical systems offer unique …

Ultrashort pulse biphoton source in lithium niobate nanophotonics at 2 μm

J Williams, R Nehra, E Sendonaris, L Ledezma… - …, 2024‏ - degruyter.com
Photonics offers unique capabilities for quantum information processing (QIP) such as room-
temperature operation, the scalability of nanophotonics, and access to ultrabroad …

Geometric landscape annealing as an optimization principle underlying the coherent ising machine

A Yamamura, H Mabuchi, S Ganguli - Physical Review X, 2024‏ - APS
Given the fundamental importance of combinatorial optimization across many diverse
domains, there has been widespread interest in the development of unconventional physical …

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 …

Quantum nondemolition measurement operator with spontaneous emission

EO Ilo-Okeke, T Byrnes - Physical Review A, 2024‏ - APS
We present a theory for quantum nondemolition (QND) measurements of an atomic
ensemble in the presence of spontaneous emission. We derive the master equation that …