| Preprint | |
| Report number | arXiv:2410.06250 |
| Title | Statistics of topological defects across a phase transition in a superconducting quantum processor |
| Author(s) | Teplitskiy, Daniil (CERN) ; Kiss, Oriel (CERN) ; Grossi, Michele (CERN) ; Mandarino, Antonio (Gdansk U. ; Milan U.) |
| Document contact | Contact: arXiv |
| Imprint | 2024-10-08 |
| Number of pages | 7 |
| Note | 4 pages, 3 figures |
| Subject category | cond-mat.stat-mech ; quant-ph ; General Theoretical Physics |
| Abstract | When a quantum phase transition is crossed within a finite time, critical slowing down disrupts adiabatic dynamics, resulting in the formation of topological defects. The average density of these defects scales with the quench rate, adhering to a universal power law as predicted by the Kibble-Zurek mechanism (KZM). In this study, we aim to investigate the counting statistics of kink density in the 1D transverse-field quantum Ising model. We demonstrate on a 20-qubit quantum processing unit, that higher-order cumulants follow a universal power law scaling as a function of the quench time. We also show the breakdown of the KZM mechanism for short quenches for finite-size systems. Tensor network simulations corroborate our quantum simulation results for bigger systems not in the asymptotic limit. |
| Other source | Inspire |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) |
Record created 2024-12-11, last modified 2024-12-12
