TY - JOUR
T1 - Correlations, quantum entanglement and interference in nanoscopic systems
AU - Hallberg, K.
AU - Rincón, Julián
AU - Nizama, M.
AU - Aligia, A. A.
AU - Ramasesha, S.
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010/11
Y1 - 2010/11
N2 - Several of the most interesting quantum effects can or could be observed in nanoscopic systems. For example, the effect of strong correlations between electrons and of quantum interference can be measured in transport experiments through quantum dots, wires, individual molecules and rings formed by large molecules or arrays of quantum dots. In addition, quantum coherence and entanglement can be clearly observed in quantum corrals. In this paper we present calculations of transport properties through Aharonov-Bohm strongly correlated rings where the characteristic phenomenon of charge-spin separation is clearly observed. Additionally quantum interference effects show up in transport through π-conjugated annulene molecules producing important effects on the conductance for different source-drain configurations, leading to the possibility of an interesting switching effect. Finally, elliptic quantum corrals offer an ideal system to study quantum entanglement due to their focalizing properties. Because of an enhanced interaction between impurities localized at the foci, these systems also show interesting quantum dynamical behaviour and offer a challenging scenario for quantum information experiments.
AB - Several of the most interesting quantum effects can or could be observed in nanoscopic systems. For example, the effect of strong correlations between electrons and of quantum interference can be measured in transport experiments through quantum dots, wires, individual molecules and rings formed by large molecules or arrays of quantum dots. In addition, quantum coherence and entanglement can be clearly observed in quantum corrals. In this paper we present calculations of transport properties through Aharonov-Bohm strongly correlated rings where the characteristic phenomenon of charge-spin separation is clearly observed. Additionally quantum interference effects show up in transport through π-conjugated annulene molecules producing important effects on the conductance for different source-drain configurations, leading to the possibility of an interesting switching effect. Finally, elliptic quantum corrals offer an ideal system to study quantum entanglement due to their focalizing properties. Because of an enhanced interaction between impurities localized at the foci, these systems also show interesting quantum dynamical behaviour and offer a challenging scenario for quantum information experiments.
UR - http://www.scopus.com/inward/record.url?scp=78650314924&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650314924&partnerID=8YFLogxK
U2 - 10.1088/1742-5468/2010/11/P11031
DO - 10.1088/1742-5468/2010/11/P11031
M3 - Article
AN - SCOPUS:78650314924
SN - 1742-5468
VL - 2010
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
IS - 11
M1 - P11031
ER -