TY - JOUR
T1 - Coupling-induced bipartite pointer states in arrays of electron billiards
T2 - Quantum darwinism in action?
AU - Brunner, R.
AU - Akis, R.
AU - Ferry, D. K.
AU - Kuchar, F.
AU - Meisels, R.
PY - 2008/7/10
Y1 - 2008/7/10
N2 - We discuss a quantum system coupled to the environment, composed of an open array of billiards (dots) in series. Beside pointer states occurring in individual dots, we observe sets of robust states which arise only in the array. We define these new states as bipartite pointer states, since they cannot be described in terms of simple linear combinations of robust single-dot states. The classical existence of bipartite pointer states is confirmed by comparing the quantum-mechanical and classical results. The ability of the robust states to create "offspring" indicates that quantum Darwinism is in action.
AB - We discuss a quantum system coupled to the environment, composed of an open array of billiards (dots) in series. Beside pointer states occurring in individual dots, we observe sets of robust states which arise only in the array. We define these new states as bipartite pointer states, since they cannot be described in terms of simple linear combinations of robust single-dot states. The classical existence of bipartite pointer states is confirmed by comparing the quantum-mechanical and classical results. The ability of the robust states to create "offspring" indicates that quantum Darwinism is in action.
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U2 - 10.1103/PhysRevLett.101.024102
DO - 10.1103/PhysRevLett.101.024102
M3 - Article
C2 - 18764183
AN - SCOPUS:48149115990
SN - 0031-9007
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
IS - 2
M1 - 024102
ER -