An NSF Expeditions Project


Archive Newsletter Social Media

Coherent Network Computing Workshop 2022

The second conference Coherent Network Computing (CNC2022) will take place at Stanford, California - at Allen Extension Building (Allen X), Auditorium - 101X, from Oct 24-26, 2022. Registrations are open and exceptional papers received after the deadline (August 31) may be considered at the discretion of the review committee. The conference follows the 2019 edition in Atsugi, Japan.

September 26th, 2022 Conference

New Paper: Few-Cycle Vacuum Squeezing in Nanophotonics

A recent paper, Few-cycle Vacuum Squeexing in Nanophotonics was published in the Science journal. In this paper, the Nonlinear Photonics Laboratory at California Institute of Technology (Caltech) demonstrated an integrated nanophotonics platform based on lithium niobate to generate and measure squeezed states on the same optical chip. Squeezed quantum states of light are states in which the noise in one of the quadratures is less than the standard quantum noise limit. The generation and manipulation of such states lies at the core of quantum-enhanced technologies, but such systems tend to require auxiliary bulk optical components for their preparation. Such generation and measurement of few-optical-cycle squeezed states in a nanophotonics setting should be useful for the development of scalable quantum information systems.

September 15th, 2022

New pre-print: Programmable simulation of bosonic transport in optical lattices

In a recent preprint, the McMahon Lab in collaboration with NTT Research shows that photonics can be used to make very large analog simulators that take advantage of the broad bandwidth of optics. The McMahon Lab built a simulator supporting up to ~100,000 lattice sites using ~120 GHz of optical bandwidth, letting them embed 2D and 3D models while avoiding finite-size effects. It is possible to probe their bandstructures and responses to different injected states, including momentum states that we can then observe propagate, as well as to program more exotic models that don't correspond to any real material and have highly non-local, non-planar couplings between sites, such as a treelike geometry that arises in some recent toy models of quantum gravity.

August 15th, 2022 Analog Simulator, Photonics