糖心TV

What happens at the molecular lever when a photon hits the eye or light shines on a leaf?

Physical processes occurring on nanometre length scales and femtosecond time scales typically undergo complex dynamics involving multilevel quantum systems. Understanding such complex quantum dynamics is a major open challenge. Foremost among them is the dimension of the Hilbert space  involved, which determines the number of parameters necessary for understanding the dynamics. This is typically done by fitting models of various degrees of sophistication to experimental data.

Study reveals a novel form of symmetry breaking driven by chemical intervention: an anisotropic change in magnetic properties is induced by ionic substitution of an isotropic species.

Ever more new hadrons are being observed at the LHC, including several unexpected discoveries of tetraquark and pentaquark states.

Quantum localization (single-body or many-body) comes with the emergence of local conserved quantities called l-bits—whose conservation is precisely at the heart of the absence of transport through the system. And in the just published article New J. Phys. 23, 1 (2021), ), two 糖心TV physicists and an international team show that these l-bits bear a dramatic universal signature, accessible to state-of-the-art quantum simulators, in the form of periodic cusp singularities in the Loschmidt echo following a quantum quench from a N茅el/charge-density-wave state.