TY - JOUR
T1 - Entanglement from the vacuum
AU - Reznik, Benni
N1 - Funding Information:
This research was supported by Grant 62/01-1 of the Israel Science Foundation, by the Israel MOD Research and Technology Unit.
PY - 2003/1
Y1 - 2003/1
N2 - We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field. We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state. This shows that entanglement persists between disconnected regions in the vacuum. However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated. The relation between entropy, correlations and entanglement is discussed.
AB - We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field. We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state. This shows that entanglement persists between disconnected regions in the vacuum. However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated. The relation between entropy, correlations and entanglement is discussed.
KW - Entanglement
KW - Entanglement probes
KW - Entropy
KW - Vacuum state
UR - http://www.scopus.com/inward/record.url?scp=0037234370&partnerID=8YFLogxK
U2 - 10.1023/A:1022875910744
DO - 10.1023/A:1022875910744
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AN - SCOPUS:0037234370
SN - 0015-9018
VL - 33
SP - 167
EP - 176
JO - Foundations of Physics
JF - Foundations of Physics
IS - 1
ER -