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11 papers · 2 filters
Quantum entanglement of two flux qubits induced by an auxiliary SQUID
T. Shi, Z. Song
We revisit a theoretical scheme to create quantum entanglement of two three-levels superconducting quantum interference devices (SQUIDs) with the help of an auxiliary SQUID. In thi…
Teleportation, Braid Group and Temperley--Lieb Algebra
Yong Zhang
We explore algebraic and topological structures underlying the quantum teleportation phenomena by applying the braid group and Temperley--Lieb algebra. We realize the braid telepor…
A generalization of boson normal ordering
Toufik Mansour, Matthias Schork, Simone Severini
In this paper we define generalizations of boson normal ordering. These are based on the number of contractions whose vertices are next to each other in the linear representation o…
Topological structures of adiabatic phase for multi-level quantum systems
Zheng-Xin Liu, Xiao-Ting Zhou, Xin Liu +2
The topological properties of adiabatic gauge fields for multi-level (three-level in particular) quantum systems are studied in detail. Similar to the result that the adiabatic gau…
Dynamic generation of entangling wave packets in XY spin system with decaying long range couplings
S. Yang, Z. Song, C. P. Sun
We study the dynamic generation of spin entanglement between two distant sites in an XY model with -decay long range couplings. Due to the linear dispersion relation $ε(k)…
Tightly Localized Stationary Pulses in Multi-Level Atomic System
Xiong-Jun Liu, Xin Liu, Zheng-Xin Liu +2
We show the pulse matching phenomenon can be obtained in the general multi-level system with electromagnetically induced transparency (EIT). For this we find a novel way to create…