Quantum

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PODCAST | Light News: Quantum Edition

Following the Photons: A Photonics Podcast

This episode of Following the Photons: A Photonics Podcast features our Light News roundup of what's happening in the quantum sector.

July 28, 2026

This shot shows the group’s highly broadband and bright optical parametric amplifier in action.

Multimode squeezed light a key to scalable quantum technologies?

July 27, 2026

Schematic comparison of carrier injection through a) 1 + 2 and b) 2 + 3 quantum interference within a semiconductor. The higher-order 2 + 3 process concentrates carriers into a narrower range of momentum-space directions and produces a more directional photocurrent.

Quantum interference control via directional photocurrent?

July 20, 2026

The different architectures of quantum computers.

Quantum computing moves from physics problem to manufacturing problem

July 17, 2026

To build a quantum sensor, light must be prepared in a carefully controlled state where its frequency, polarization, and intensity are well controlled. The polarization of blue light is altered before it’s used to cool the atoms to near absolute zero.

Milestone reached on path to large-scale quantum sensors

July 16, 2026

FIGURE 1. Top: An OFC generated by a modelocked laser. Bottom: A periodic pulse train in the time domain corresponds to a series of discrete frequencies in the frequency domain. The frequency comb is shifted in frequency space by a carrier-envelope offset frequency fceo, which arises from the carrier envelope phase slip Δφ between successive pulses. Apart from this offset, the comb consists of equally spaced spectral lines separated by the repetition rate frep.

Lasers & Sources

Optical frequency combs: Spectral purity transfer

July 1, 2026

FIGURE 1. a) Schematics of Wheeler’s words. b) The Pryce-Ward γ-ray quantum entanglement experiment using a positron-electron annihilation source.

Quantum entanglement: Impacts on philosophy and reality

June 29, 2026

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Optics, photonics, quantum community

June 17, 2026

Pierre Luc Thériault, a Ph.D. student in engineering physics, aligns the team’s experimental setup.

Organic thin film brings second-order optical nonlinear effects to silicon photonics

June 2, 2026

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