TY - JOUR
T1 - Spectral statistics of pointer states in open quantum dots
AU - Akis, R.
AU - Ferry, D. K.
N1 - Funding Information:
This work was supported by the Office of Naval Research. The authors have benefited by discussions with Y.-C. Lai, A. de Moura, I. Knezevic, I. Rotter, and H. Stockmann.
PY - 2006/8
Y1 - 2006/8
N2 - Pointer states are thought to control the relationship between quantum system properties and the classical results of measurement. In open quantum dots, they yield measurable conductance resonances. We study the energy level spacing statistics in a perturbed stadium dot, which, when closed, follow the Wigner distribution associated with chaos. In contrast, when the stadium is opened so that only the pointer states localized in the interior remain, the distribution becomes Poissonian, indicating that these states are intimately associated with the regular classical orbits.
AB - Pointer states are thought to control the relationship between quantum system properties and the classical results of measurement. In open quantum dots, they yield measurable conductance resonances. We study the energy level spacing statistics in a perturbed stadium dot, which, when closed, follow the Wigner distribution associated with chaos. In contrast, when the stadium is opened so that only the pointer states localized in the interior remain, the distribution becomes Poissonian, indicating that these states are intimately associated with the regular classical orbits.
KW - Quantum chaos
KW - Quantum dots
KW - Quantum transport
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U2 - 10.1016/j.physe.2006.03.017
DO - 10.1016/j.physe.2006.03.017
M3 - Article
AN - SCOPUS:33746384881
SN - 1386-9477
VL - 34
SP - 460
EP - 463
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1-2
ER -