Schwemmer, C. and Tóth, Géza and Niggebaum, A. and Moroder, T. and Gross, D. and Gühne, O. and Weinfurter, H. (2014) Experimental Comparison of Efficient Tomography Schemes for a Six-Qubit State. PHYSICAL REVIEW LETTERS, 113 (4). ISSN 0031-9007
|
Text
1401.7526.pdf Available under License Creative Commons Attribution. Download (7MB) | Preview |
Abstract
Quantum state tomography suffers from the measurement effort increasing exponentially with the number of qubits. Here, we demonstrate permutationally invariant tomography for which, contrary to conventional tomography, all resources scale polynomially with the number of qubits both in terms of the measurement effort as well as the computational power needed to process and store the recorded data. We demonstrate the benefits of combining permutationally invariant tomography with compressed sensing by studying the influence of the pump power on the noise present in a six-qubit symmetric Dicke state, a case where full tomography is possible only for very high pump powers.
Item Type: | Article |
---|---|
Subjects: | Q Science / természettudomány > QC Physics / fizika |
SWORD Depositor: | MTMT SWORD |
Depositing User: | MTMT SWORD |
Date Deposited: | 10 Apr 2024 12:56 |
Last Modified: | 10 Apr 2024 12:56 |
URI: | https://real.mtak.hu/id/eprint/192278 |
Actions (login required)
![]() |
Edit Item |