2026-06-06T12:45:10Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/63242023-08-25T16:18:28Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Kim, Yosep
author
Yong-Siah, Teo
author
Daekun, Ahn
author
Im, Dong Gil
author
Cho, Young Wook
author
Leuchs, Gerd
author
Sánchez Soto, Luis Lorenzo
author
Hynseok, Jeong
author
Kim, Yoon-Ho
2023-06-16T15:19:04Z
2023-06-16T15:19:04Z
2020-05-27
0031-9007
10.1103/PhysRevLett.124.210401
https://hdl.handle.net/20.500.14352/6324
http://dx.doi.org/10.1103/PhysRevLett.124.210401
https://journals.aps.org
Recent quantum technologies utilize complex multidimensional processes that govern the dynamics of quantum systems. We develop an adaptive diagonal-element-probing compression technique that feasibly characterizes any unknown quantum processes using much fewer measurements compared to conventional methods. This technique utilizes compressive projective measurements that are generalizable to an arbitrary number of subsystems. Both numerical analysis and experimental results with unitary gates demonstrate low measurement costs, of order O(d(2)) for d-dimensional systems, and robustness against statistical noise. Our work potentially paves the way for a reliable and highly compressive characterization of general quantum devices.
eng
Universal compressive characterization of quantum dynamics
journal article
URL
https://docta.ucm.es/bitstreams/564ffcb7-b0ec-43d1-9016-fab49fd0345e/download
File
MD5
0dc8fd77e82a95db2865934bd376e6de
852100
application/pdf
SanchezSotoLL 30 LIBRE (1).pdf