Spin guided scattering of light is observed in a liquid crystal –

Just as topological insulators provide protection to electrons travelling along their edges and surfaces, photons can also be topologically protected. This can occur when photon scattering modes are associated with just one spin state. Now, researchers in India and the Netherlands have found that spin-selective or spin asymmetric scattering modes can be observed using a twisted nematic-liquid-crystal-based spatial light modulator.

A tiny particle collider yields new evidence for a type of 'quasiparticles' called anyons

You may know that there are two classes of fundamental particles — fermions and bosons — underlying what we normally think of as matter. Neutrons, protons, and electrons are all fermions; photons are an example of bosons. Fermions repel each other, and bosons don't. These quantum statistics are well-known. But physicists have now observed particles that don’t fall under either category.

PROFILE: Daisy Shearer, experimental quantum physics PhD candidate

My name is Daisy Shearer, and I’m a second-year PhD candidate at the University of Surrey, U.K., where I work within the Photonics and Quantum Sciences Group at the Advanced Technology Institute. I also attended the University of Surrey for my undergraduate integrated Masters (MPhys) degree, where I studied physics for four years, including one year doing research in an industry setting for my master’s dissertation. I was placed at the Centre for Integrated Photonics where I had the amazing opportunity to do R&D on electroabsorption modulated lasers for long-haul telecommunications applications. This research experience gave me a taste for experimental quantum physics, and I haven’t really looked back since!

Physics in the pandemic: ‘Returning to the lab will be hugely beneficial for me’

In March, everyone in our research institute was advised to work from home if possible, and our labs shut down soon after. Although my PhD project is mostly experimental, I am lucky in that I had already started incorporating some computational modelling into my work. The reason I did this is because, as an autistic person, I am not always able to physically go to campus: I sometimes find the myriad of sensations there overwhelming, and social interactions can leave me fatigued. So, I was already searching for ways to make meaningful progress on my research while working remotely for longer periods.