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32 papers · 2 filters
Self-intersecting Regge trajectories in multi-channel scattering
D. Sokolovski, Z. Felfli, A. Z. Msezane
We present a simple direct method for calculating Regge trajectories for a multichannel scattering problem. The approach is applied to the case of two coupled Thomas-Fermi type pot…
Feshbach Projection Operator Partitioning for Quantum Open Systems: Stochastic Approach
Jun Jing, Lian-Ao Wu, J. Q. You +1
Dynamics of a state of interest coupled to a non-Markovian environment is studied for the first time by concatenating the non-Markovian quantum state diffusion (QSD) equation and t…
General Quantum State Swap: an XY model analysis
Ben-Qiong Liu, Lian-Ao Wu, Bin Shao +1
We consider an exact state swap, defined as the swap between two quantum states |A> and |B> in the Hilbert space of a quantum system. We show that, given an arbitrary Hamiltonian d…
Multipartite Entanglement Generation Assisted by Inhomogeneous Coupling
C. E. López, F. Lastra, G. Romero +2
We show that controllable inhomogeneous coupling between two-level systems and a common data bus provides a fast mechanism to produce multipartite entanglement. Our proposal combin…
Topological Qubits with Majorana Fermions in Trapped Ions
A. Mezzacapo, J. Casanova, L. Lamata +1
We propose a method of encoding a topologically-protected qubit using Majorana fermions in a trapped-ion chain. This qubit is protected against major sources of decoherence, while…
Fidelity of fermionic atom-number states subjected to tunneling decay
M. Pons, D. Sokolovski, A. del Campo
Atom-number states are a valuable resource for ultracold chemistry, atom interferometry and quantum information processing. Recent experiments have achieved their deterministic pre…