[26-09-2022]
Physicists from TU Delft, ETH Zürich and the University of Tübingen have built a quantum scale heat pump made from particles of light. This device brings scientists closer to the quantum limit of measuring radio frequency signals, useful in for example the hunt for dark matter. Their work was published as an open-access article in Science Advances last month.
If you bring two objects of different temperatures together, such as putting a warm bottle of white wine into a cold chill pack, heat usually flows in one direction, from hot (the wine) to cold (the chill pack). And if you wait long enough, the two will both reach the same temperature, a process known in physics as reaching equilibrium: a balance between the heat flow one way and the other.
If you are willing to do some work, you can break this balance and cause heat to flow in the “wrong” way. This is the principle used in your refrigerator to keep your food cold, and in efficient heat pumps that can steal heat from the cold air outside to warm your house. In their publication, Gary Steele (Quantum Nanoscience department, Delft University of Technology) and his co-authors demonstrate a quantum analog of a heat pump, causing the elementary quantum particles of light, known as photons, to move “against the flow” from a hot object to a cold one.
PhD defence - Amitesh Singh:"Non-Abelian Metamaterials:Emergent computing and memory"
PhD defence - Nick van Loo: "Shadow-wall lithography as a novel approach to Majorana devices"
2nd webinar series on “Photothermal Microscopy and Spectroscopy
PhD defence - Hans Bartling: "Quantum control of interacting nuclear and electron spins in diamond"
PhD defence - Anthony Birnie: "Genome-in-a-box: Building a Chromosome from the Bottom Up"
Theoretical physics: Seminar Theoretical High Energy Physics
PhD course: Microscopy - online version (to be taken anytime)
Casimir Summer School was a success!
31-08-2023
PhD position in Delft, Ryoichi Ishihara group: Photonic Circuits for Quantum Computer
Delft
13-02-2023
PhD positions in Leiden, Bhattacharyya lab: quantum transport in van der Waals heterostructures
Leiden
17-08-2022
Delft
02-08-2022
PhD position in Leiden, Allan lab: Electron pair microscopy
Leiden
01-08-2022