Sen(De), Aditi ; Sen, Ujjwal ; Ahufinger, Veronica ; Briegel, Hans J. ; Sanpera, Anna ; Lewenstein, Maciej (2006) Quantum-information processing in disordered and complex quantum systems Physical Review A, 74 (6). ISSN 2469-9926 (print) 2469-9934 (web)
PDF
149kB |
Official URL: https://doi.org/10.1103%2Fphysreva.74.062309
Abstract
We investigate quantum information processing and manipulations in disordered systems of ultracold atoms and trapped ions. First, we demonstrate generation of entanglement and local realization of quantum gates in a quantum spin glass system. Entanglement in such systems attains significantly high values, after quenched averaging, and has a stable positive value for arbitrary times. Complex systems with long range interactions, such as ion chains or dipolar atomic gases, can be modeled by neural network Hamiltonians. In such systems, we find the characteristic time of persistence of quenched averaged entanglement, and also find the time of its revival.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Physical Society (APS) |
ID Code: | 125886 |
Deposited On: | 13 Oct 2022 03:45 |
Last Modified: | 13 Oct 2022 03:45 |
Repository Staff Only: item control page