Quantum asymmetry of switching in laterally coupled quantum wires with tunable coupling strength

作者: A. Ramamoorthy , J. P. Bird , J. L. Reno

DOI: 10.1063/1.2362592

关键词: Condensed matter physicsQuantum gateCoupling strengthQuantumCoupling (physics)Quantum point contactQuantum wireAsymmetryTrapped ion quantum computerPhysics

摘要: The authors study switching in laterally coupled quantum wires under conditions where their sidewall confinement strongly influences the transmission properties of coupling region. Their analysis suggests that low-temperature behavior currents this regime results from influence inevitable structural asymmetry on quantum-level structure wires.

参考文章(16)
A. Bertoni, P. Bordone, R. Brunetti, C. Jacoboni, S. Reggiani, Quantum logic gates based on coherent electron transport in quantum wires. Physical Review Letters. ,vol. 84, pp. 5912- 5915 ,(2000) , 10.1103/PHYSREVLETT.84.5912
Michael G. Snyder, Linda E. Reichl, Ballistic electron waveguide adder Physical Review A. ,vol. 70, pp. 052330- ,(2004) , 10.1103/PHYSREVA.70.052330
A. Ramamoorthy, J. P. Bird, J. L. Reno, Switching characteristics of coupled quantum wires with tunable coupling strength Applied Physics Letters. ,vol. 89, pp. 013118- ,(2006) , 10.1063/1.2219085
Y. Hirayama, A. D. Wieck, T. Bever, K. von Klitzing, K. Ploog, Parallel in-plane-gated wires coupled by a ballistic window. Physical Review B. ,vol. 46, pp. 4035- 4040 ,(1992) , 10.1103/PHYSREVB.46.4035
Andrea Bertoni, Paolo Bordone, Rossella Brunetti, Carlo Jacoboni, Susanna Reggiani, Numerical simulation of coherent transport in quantum wires for quantum computing Journal of Modern Optics. ,vol. 49, pp. 1219- 1234 ,(2002) , 10.1080/09500340110105948
T. Ando, Quantum point contacts in magnetic fields Physical Review B. ,vol. 44, pp. 8017- 8027 ,(1991) , 10.1103/PHYSREVB.44.8017
J. Harris, R. Akis, D. K. Ferry, Magnetically switched quantum waveguide qubit Applied Physics Letters. ,vol. 79, pp. 2214- 2215 ,(2001) , 10.1063/1.1405428
Michael G. Snyder, Gursoy B. Akguc, Linda E. Reichl, Anil Shaji, Bell states in a resonant quantum waveguide network Physical Review A. ,vol. 69, pp. 042303- ,(2004) , 10.1103/PHYSREVA.69.042303
Cristopher C. Eugster, Jesús A. del Alamo, Tunneling spectroscopy of an electron waveguide Physical Review Letters. ,vol. 67, pp. 3586- 3589 ,(1991) , 10.1103/PHYSREVLETT.67.3586