{
  "date" : "2009-09-21",
  "identifier_doecontract" : "",
  "subject" : "71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DECOMPOSITION; DENSITY MATRIX; ENTROPY; EVOLUTION; MASS; QUANTUM ENTANGLEMENT; QUANTUM TELEPORTATION; SPACE; TRAJECTORIES; VACUUM STATES; CHEMICAL REACTIONS; MATRICES; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES",
  "description" : "We find the density matrix corresponding to the vacuum state of a massless Dirac field in two dimensions reduced to a region of the space formed by several disjoint intervals. We calculate explicitly its spectral decomposition. The imaginary power of the density matrix is a unitary operator implementing an internal time flow (the modular flow). We show that in the case of more than one interval, this evolution is non-local, producing both advance in the causal structure and 'teleportation' between the disjoint intervals. However, it only mixes the fields on a finite number of trajectories, one for each interval. As an application of these results we compute the entanglement entropy for the massive multi-interval case in the small mass limit.",
  "language" : "English",
  "identifier_report" : "",
  "publisher_sponsor" : "",
  "publisher_country" : "United Kingdom",
  "source" : "GBN",
  "purl" : "",
  "title" : "Reduced density matrix and internal dynamics for multicomponent regions",
  "type" : "Journal Article",
  "subject_related" : "CHEMICAL REACTIONS; MATRICES; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES",
  "relation" : "Journal Name: Classical and Quantum Gravity; Journal Volume: 26; Journal Issue: 18; Other Information: DOI: 10.1088/0264-9381/26/18/185005; PII: S0264-9381(09)17120-4",
  "entry_date" : "2012-12-21",
  "subject_list" : [ "71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS", "DECOMPOSITION", "DENSITY MATRIX", "ENTROPY", "EVOLUTION", "MASS", "QUANTUM ENTANGLEMENT", "QUANTUM TELEPORTATION", "SPACE", "TRAJECTORIES", "VACUUM STATES", "CHEMICAL REACTIONS", "MATRICES", "PHYSICAL PROPERTIES", "THERMODYNAMIC PROPERTIES" ],
  "publisher_availability" : "Available from http://dx.doi.org/10.1088/0264-9381/26/18/185005",
  "rights" : "",
  "announced_date" : "2011-12-30",
  "type_qualifier" : "",
  "has_fulltext" : false,
  "coverage" : "",
  "identifier" : "",
  "journal_volume" : "26",
  "creator" : "Casini, H; Huerta, M [Centro Atomico Bariloche, 8400-S.C. de Bariloche, Rio Negro (Argentina)]",
  "site_ownership_code" : "GBN",
  "osti_id" : "21376193",
  "journal_issue" : "18",
  "resource_type" : "JOUR",
  "format" : "Medium: X; Size: 15 pages",
  "journal_name" : [ ],
  "contributing_organizations" : "",
  "citation_location" : "https://www.osti.gov/etdeweb/biblio/21376193",
  "publication_year" : 2009,
  "subject_list_commas" : "71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS, DECOMPOSITION, DENSITY MATRIX, ENTROPY, EVOLUTION, MASS, QUANTUM ENTANGLEMENT, QUANTUM TELEPORTATION, SPACE, TRAJECTORIES, VACUUM STATES, CHEMICAL REACTIONS, MATRICES, PHYSICAL PROPERTIES, THERMODYNAMIC PROPERTIES",
  "publisher" : "",
  "identifier_other" : "Journal ID: ISSN 0264-9381; CQGRDG; TRN: GB10P2734106647",
  "publisher_research" : "",
  "creators_list" : [ "Casini, H", "Huerta, M [Centro Atomico Bariloche, 8400-S.C. de Bariloche, Rio Negro (Argentina)]" ],
  "doi" : "https://doi.org/10.1088/0264-9381/26/18/185005"
}