|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Qubit dynamics with classical noise | | Qin Huang
; Marco Merkli
; | | Date: |
8 Sep 2020 | | Abstract: | We study the evolution of a qubit evolving according to the Schrödinger
equation with a Hamiltonian containing noise terms, modeled by random diagonal
and off-diagonal matrix elements. We show that the noise-averaged qubit density
matrix converges to a final state, in the limit of large times $t.$ The
convergence speed is polynomial in $1/t$, with a power depending on the
regularity of the noise probability density and its low frequency behaviour. We
evaluate the final state explicitly. We show that in the regimes of weak and
strong off-diagonal noise, the process implements the dephasing channel in the
energy- (localized) and the delocalized basis, respectively. | | Source: | arXiv, 2009.03517 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER