|Titre||Testing Intergrability with a single bit of quantum information |
|Type de publication||Journal Article |
|Nouvelles publications||2003 |
|Auteurs||Poulin D, Laflamme R, Milburn GJ, Paz J-P |
|Journal||Physical Review A |
|Mots clés||Quantum chaos, Quantum simulation |
|Résumé||We show that deterministic quantum computing with a single bit (DQC1) can determine whether the classical limit of a quantum system is chaotic or integrable using $O(N)$ physical resources, where $N$ is the dimension of the Hilbert space of the system under study. This is a square root improvement over all known classical procedures. Our study relies strictly on the random matrix conjecture. We also present numerical results for the nonlinear kicked top.