Beyond Binary Quantum Information
Our very own Vatshal Srivastav won the 1st prize in the Heriot-Watt, Engineering and Physical Sciences, Postgraduate Resarch Day for his poster on our upcoming work “Genuine High-Dimensional Quantum Steering”.
That’s not all. He ALSO won 1st prize at the Inaugural Brazil-Scotland Meeting on Structured Light (BraSco)!
The BraSco announcement, and Vatshal modelling his new prize Sennheiser headphones.
Two weeks, two prizes, what’s next for this man…
Our recent work on unscrambling entanglement through a complex medium is featured on the cover of the November issue of Nature Physics!
The cover image was designed by our very own Saroch and depicts higher order optical modes getting scrambled inside a multi-mode fibre.
We are happy to share that Mehul has been awarded an ERC Starting Grant by the European Research Council! The PIQUaNT project (Photonics for High-Dimensional Quantum Networking) will focus on technologies for the manipulation and control of structured light in space and time, with an emphasis on entanglement-based applications. We will soon be advertising PhD and postdoc positions for this project, so please keep an eye out. For more, please read the Heriot-Watt press release.
We are presenting five talks at Photon 2020, a biannual conference on photonics that is being held online this year. The registration is free for students, and we would be very happy if you tuned in! The talk schedule is as follows:
Tuesday, 11:30 AM
Saroch Leedumrongwatthanakun
Reconfigurable high-dimensional quantum gates using a multi-mode fiber
Tuesday, 2:45 PM
Vatshal Srivastav
Experimental Demonstration of High-Dimensional Steering
Tuesday, 3:00 PM
Will McCutcheon
Compressive Sensing of Dispersive Scrambling Channels
Wednesday, 3:45 PM
Mehul Malik
Unscrambling Entanglement through a Complex Medium
Thursday, 10:00 AM
Natalia Herrera Valencia
High-Dimensional Pixel Entanglement: Efficient Generation and Certification
In new work from our lab published in the journal Nature Physics, we demonstrate how high-dimensional entanglement can be transported through a complex medium consisting of a commercial multi-mode fibre supporting hundreds of spatial modes. This work was done in collaboration with Dr. Hugo Defienne from University of Glasgow.
In a quantum twist, the transmission matrix of the fibre was measured by mapping the entire matrix onto a single entangled state, which is an example of state-channel duality in quantum mechanics. Furthermore, the entanglement was regained without ever manipulating the fibre or the photon that entered it. Instead, we carefully scrambled the entangled partner that remained outside, allowing us to transport 6-dimensional entanglement through the fibre!
Popular media coverage: BBC News, Physics World, Physics Today, Heriot-Watt press release
N. H. Valencia, S. Goel, W. McCutcheon, H. Defienne, & M. Malik, Unscrambling Entanglement through a Complex Medium, Nature Physics (2020), doi: 10.1038/s41567-020-0970-1.
BBQ Lab 