Institute of Computer Science AGH and IBM Software Laboratory in Krakow invite to Krakow Quantum Informatics Seminar (KQIS)
•    understand and discuss current problems in quantum informatics,
•    discuss new quantum computing technologies,
•    exchange ideas and research results,
•    integrate information across different research teams,
•    build a community around quantum informatics.
Venue:  via Internet, Webex

Tuesday, 17th of May 2022, 9:35-11:00

Jacek Dziarmaga, Quantum Many-Body Theory Department, Institute of Physics, Jagiellonian University, Krakow, Poland

Topic: The quantum Kibble-Żurek mechanism as a test of quantum simulators/annealers



When a Hamiltonian is driven across a quantum critical point the adiabatic approximation fails and the state after the transition becomes a quantum superposition of excited states. As predicted by a quantum version of the Kibble-Żurek mechanism the excitation should scale with a power of the driving rate. By now this universal mechanism is well established by a number of exact solutions, numerical simulations and experiments. It is its turn to serve as a convenient test of quantumness for quantum simulators and quantum annealers. In this talk I will explain the QKZM and then review its tests in/of the Rydberg-atoms quantum simulation platform and the D-Wave quantum(?) annealers.



PhD at Jagiellonian University; postdoc at Durham University, UK; Director Funded Postdoc in Los Alamos, USA; Professor at Jagiellonian University


  • 4 months, 2 weeks ago