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- Tongji UniversityCN26 papers
- China Center of Advanced Science and TechnologyCN16 papers
- Chinese Academy of SciencesCN12 papers
- University of MichiganUS11 papers
- Hunan Normal UniversityCN10 papers
- Institute of Theoretical PhysicsCN10 papers
- RIKENJP10 papers
- Universidade de São PauloBR10 papers
- Hiroshima UniversityJP8 papers
- Shanghai UniversityCN7 papers
- Institute of Modern PhysicsCN6 papers
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12 papers · 1 filter
The information about the state of a qubit gained by a weakly coupled detector
S. Ashhab, J. Q. You, Franco Nori
We analyze the information that one can learn about the state of a quantum two-level system, i.e. a qubit, when probed weakly by a nearby detector. In particular, we focus on the c…
Implementing topological quantum manipulation with superconducting circuits
Zheng-Yuan Xue, Shi-Liang Zhu, J. Q. You +1
A two-component fermion model with conventional two-body interactions was recently shown to have anyonic excitations. We here propose a scheme to physically implement this model by…
Weak and strong measurement of a qubit using a switching-based detector
S. Ashhab, J. Q. You, Franco Nori
We analyze the operation of a switching-based detector that probes a qubit's observable that does not commute with the qubit's Hamiltonian, leading to a nontrivial interplay betwee…
Division of the two-qubit Hilbert space according to the entanglement sudden death under composite noise environment
Peng Li, Qun Zhang, J. Q. You
We show theoretically that according to the disentanglement behavior under composite noise environment, the Hilbert space of a two-qubit system can be divided into two separate par…
Geometric vs. Dynamical Gates in Quantum Computing Implementations Using Zeeman and Heisenberg Hamiltonians
Yu Shi
Quantum computing in terms of geometric phases, i.e. Berry or Aharonov-Anandan phases, is fault-tolerant to a certain degree. We examine its implementation based on Zeeman coupling…
Quantum criticality of the Lipkin-Meshkov-Glick Model in terms of fidelity susceptibility
Ho-Man Kwok, Wen-Qiang Ning, Shi-Jian Gu +1
We study the critical properties of the Lipkin-Meshkov-Glick Model in terms of the fidelity susceptibility. By using the Holstein-Primakoff transformation, we obtain explicitly the…