Relativistic quantum information in detectors-field interactions

B. L. Hu, Shih Yuin Lin, Jorma Louko

Research output: Contribution to journalReview articlepeer-review

35 Citations (Scopus)


We review Unruh-DeWitt detectors and other models of detector-field interaction in a relativistic quantum field theory setting as a tool for extracting detector-detector, field-field and detector-field correlation functions of interest in quantum information science, from entanglement dynamics to quantum teleportation. In particular, we highlight the contrast between the results obtained from linear perturbation theory which can be justified provided switching effects are properly accounted for, and the nonperturbative effects from available analytic expressions which incorporate the backreaction effects of the quantum field on the detector behavior.

Original languageEnglish
Article number224005
JournalClassical and Quantum Gravity
Issue number22
Publication statusPublished - 2012 Nov 21

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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