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“School of Physics”

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Paper   IPM / P / 15465
School of Physics
  Title:   String Memory Effect
  Author(s): 
1 . H.R. Afshar
2 . E. Esmaeili
3 . M.M. Sheikh-Jabbari
  Status:   Published
  Journal: JHEP
  Vol.:  1902
  Year:  2019
  Pages:   053
  Supported by:  IPM
  Abstract:
In systems with local gauge symmetries, the memory effect corresponds to traces inscribed on a suitable probe when a pure gauge configuration at infinite past dynamically evolves to another pure gauge configuration at infinite future. In this work, we study the memory effect of 2-form gauge fields which is probed by strings. We discuss the ßtring memory effect" for closed and open strings at classical and quantum levels. The closed string memory is encoded in the internal excited modes of the string, and in the open string case, it is encoded in the relative position of the two endpoints and the noncommutativity parameter associated with the D-brane where the open string endpoints are attached. We also discuss 2-form memory with D-brane probes using boundary state formulation and, the relation between string memory and 2-form soft charges analyzed in [1].

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