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9 papers · 1 filter
Two-qubit Quantum Logic Gate in Molecular Magnets
Jing-Min Hou, Li-Jun Tian, Mo-lin Ge
We proposed a scheme to realize a controlled-NOT quantum logic gate in a dimer of exchange coupled single-molecule magnets, . We chosen the ground state and the…
Elasticity of polymer vesicles by osmotic pressure: an intermediate theory between fluid membranes and solid shells
Z. C. Tu, L. Q. Ge, J. B. Li +1
The entropy of a polymer confined in a curved surface and the elastic free energy of a membrane consisting of polymers are obtained by scaling analysis. It is found that the elasti…
Regularities of Many-body Systems Interacting by a Two-body Random Ensemble
Y. M. Zhao, A. Arima, N. Yoshinaga
The ground states of all even-even nuclei have angular momentum, , equal to zero, I=0, and positive parity, . This feature was believed to be a consequence of the attractiv…
Stability of Quantum Motion: Beyond Fermi-golden-rule and Lyapunov decay
Wen-ge Wang, G. Casati, Baowen Li
We study, analytically and numerically, the stability of quantum motion for a classically chaotic system. We show the existence of different regimes of fidelity decay which deviate…
General pairing interactions and pair truncation approximations for fermions in a single-j shell
Y. M. Zhao, A. Arima, J. N. Ginocchio +1
We investigate Hamiltonians with attractive interactions between pairs of fermions coupled to angular momentum J. We show that pairs with spin J are reasonable building blocks for…
Angular momentum I ground state probabilities of boson systems interacting by random interactions
Y. M. Zhao, A. Arima, N. Yoshinaga
In this paper we report our systematic calculations of angular momentum ground state probabilities () of boson systems with spin in the presence of random two-body in…