Nonlocal correlations are generic in infinite-dimensional bipartite systems
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Nonlocal correlations are generic in infinite-dimensional bipartite systems. / Clifton, Rob; Halvorson, Hans; Kent, Adrian.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 61, No. 4, 042101, 04.2000, p. 421011-421017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Nonlocal correlations are generic in infinite-dimensional bipartite systems
AU - Clifton, Rob
AU - Halvorson, Hans
AU - Kent, Adrian
PY - 2000/4
Y1 - 2000/4
N2 - It was recently shown that nonseparable density operators on the Hilbert space H1⊗H2 are trace norm dense if either factor space has infinite dimension. We show here that nonlocal states, i.e., states whose correlations cannot be reproduced by any local hidden variable model, are also dense. Our constructions distinguish between the case dim H1 = dim H2 = ∞, where we show that states violating the Clauser-Horne-Shimony-Holt (CHSH) inequality are dense, and the case dim H12=∞, where we identify open neighborhoods of nonseparable states that do not violate the CHSH inequality but show that states with a subtler form of nonlocality (often called "hidden" nonlocality) remain dense.
AB - It was recently shown that nonseparable density operators on the Hilbert space H1⊗H2 are trace norm dense if either factor space has infinite dimension. We show here that nonlocal states, i.e., states whose correlations cannot be reproduced by any local hidden variable model, are also dense. Our constructions distinguish between the case dim H1 = dim H2 = ∞, where we show that states violating the Clauser-Horne-Shimony-Holt (CHSH) inequality are dense, and the case dim H12=∞, where we identify open neighborhoods of nonseparable states that do not violate the CHSH inequality but show that states with a subtler form of nonlocality (often called "hidden" nonlocality) remain dense.
UR - http://www.scopus.com/inward/record.url?scp=4243505165&partnerID=8YFLogxK
M3 - Journal article
AN - SCOPUS:4243505165
VL - 61
SP - 421011
EP - 421017
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 4
M1 - 042101
ER -
ID: 370731364