Tag: ETH Hönggerberg HIT E 41.1

Daniel A. Ortuño-González – PhD student at ETH Zürich Quantum crystals are unique phases of matter that emerge at near-zero temperatures, where quantum fluctuations, rather than thermal fluctuations, drive phase transitions. One of such type of crystals can be obtained in ultra-cold atoms interacting with an optical cavity, where the atoms undergo a symmetry breaking…

Borna Salehian – Postdoc at ETH Zurich We study the constraints imposed on the electromagnetic response of general media by microcausality (commutators of local fields vanish outside the light cone) and positivity of the imaginary parts (the medium can only absorb energy from the external field). The equations of motion for the average electromagnetic field…

Daniel Arrufat Vicente – PhD student at ETH Zurich Systems with strong non-local interactions exhibit a rich variety of out-of-equilibrium phenomena. One of the distinctive features of classical systems is the emergence of pre-thermal phases, known as quasi-stationary states (QSSs), whose lifetimes grow with system size. Similar effects are observed in quantum systems, though a…