{"arxiv_id":"hep-th/0508003","title":"D-branes in a Big Bang/Big Crunch Universe: Misner Space","abstract":"We study D-branes in a two-dimensional Lorentzian orbifold R^{1,1}/\\Gamma with a discrete boost \\Gamma. This space is known as Misner or Milne space, and includes big crunch/big bang singularity. In this space, there are D0-branes in spiral orbits and D1-branes with or without flux on them. In particular, we observe imaginary parts of partition functions, and interpret them as the rates of open string pair creation for D0-branes and emission of winding closed strings for D1-branes. These phenomena occur due to the time-dependence of the background. Open string 2 -> 2 scattering amplitude on a D1-brane is also computed and found to be less singular than closed string case.","primary_cat":"hep-th","cross_cats":[],"submitted_at":"2005-07-30T07:48:37+00:00","latest_version":2,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":null,"confidence":null,"one_line_summary":null,"novelty_score":null,"correctness_risk":null,"formal_verification":null,"upvotes":0,"downvotes":0,"pith_score":0,"inbound_count":4,"_links":{"html":"https://pith.science/paper/hep-th/0508003","verdict":"/api/v1/verdicts/hep-th/0508003"}}