5 papers
Quantum Chaos with a Macroscopic Zero-Mode Sector
Cheryne Jonay, Kun W. Kim, Frank Pollmann +1
Chaotic many-body spectra are expected to densely fill their energy window. We show that constrained spin chains with chiral symmetry evade this expectation by hosting an exponenti…
Geometric Approach to Zero-Memory Quantum Dot Reservoir Computing
Bongsu Kim, Oscar Lee, Sangjun Jeon +1
Physical reservoir computing offers an energy-efficient alternative to conventional neural networks, where the intrinsic memory capacity in the physical system plays a central role…
Thermodynamic uncertainty relations in superconducting junctions
David Christian Ohnmacht, Juan Carlos Cuevas, Wolfgang Belzig +3
Quantum conductors attached to metallic reservoirs have been demonstrated to overcome the thermodynamic uncertainty relation (TUR), a trade-off relation between the amount of dissi…
Path integral approach to quantum thermalization
Alexander Altland, Kun Woo Kim, Tobias Micklitz
We introduce a quasiclassical Green function approach describing the unitary yet irreversible dynamics of quantum systems effectively acting as their own environment. Combining a v…
Universal Optical Conductivity from Quantum Geometry in Quadratic Band-Touching Semimetals
Chang-geun Oh, Sun-Woo Kim, Kun Woo Kim +2
Exploring the quantum geometric properties of solids beyond their topological aspects has become a key focus in current solid-state physics research. We derive the geometric formul…