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 https://ibm.webex.com/meet/tomasz.stopa
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