Nonlocal correlations are generic in infinite-dimensional bipartite systems
Research output: Contribution to journal › Journal article › Research › peer-review
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 H1<dimH2=∞, 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.
Original language | English |
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Article number | 042101 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 61 |
Issue number | 4 |
Pages (from-to) | 421011-421017 |
Number of pages | 7 |
ISSN | 1050-2947 |
Publication status | Published - Apr 2000 |
ID: 370731364