Quantum communication relies on single photons whose polarization carries zero or one. Any attempt to read or intercept that ...

Everyday life on the internet is insecure. Hackers can break into bank accounts or steal digital identities. Driven by AI, ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

In 1920, Danish physicist Niels Bohr proposed that although light (photons) has a dual nature, behaving as both particle and wave, it’s impossible to observe this duality at the same time. This is ...

A single-photon switch uses a quantum emitter, such as a quantum dot or a superconducting qubit, coupled to a nanophotonic ...

Several weeks ago I picked up “The Elegant Universe” because I thought it would have information on The Ultimate Theory. Soon afterwards, I picked up “How to Teach Physics To Your Dog” in order to get ...

Two-photon microscopy is a type of fluorescence microscopy that, rather than exciting the sample with a single photon, makes use of multiple photons. The advantage over more traditional one-photon ...

We present an approach to describe state-of-the-art photonic quantum experiments using graph theory. There, the quantum states are given by the coherent superpositions of perfect matchings. The ...

Good on you (no, for real), but you don't have to spend a lot. More often than not, an older edition of a text will be perfectly serviceable, so you might pay $40 on a book that in its latest edition ...