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Title: Effects of interactions on the generalized Hong–Ou–Mandel effect

We numerically investigate the influence of interactions on the generalized Hong–Ou–Mandel (HOM) effect for bosonic particles in a (quasi-)one-dimensional set-up with weak harmonic confinement and show results for the cases of N = 2, N = 3 and N = 4 bosons interacting with a beam splitter, whose role is played by a δ-barrier. In particular, we focus on the effect of attractive interactions and compare the results with the repulsive case, as well as with the analytically available results for the non-interacting case (that we use as a benchmark). In addition, we observe a fermionization effect both for growing repulsive and attractive interactions, i.e., the dip in the HOM coincidence count is progressively smeared out, for increasing interaction strengths. The role of input asymmetries is also explored.
Authors:
 [1] ;  [2]
  1. Univ. of Massachusetts, Amherst, MA (United States); Carl von Ossietzky Univ., Oldenburg (Germany)
  2. Univ. of Massachusetts, Amherst, MA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1233525
Report Number(s):
LA--UR-15-21323
Journal ID: ISSN 0375-9601; PII: S0375960115003138; TRN: US1600431
Grant/Contract Number:
605096; DMS-1312856; 2010239; INST 184/108-1 FUGG; AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Physics Letters. A
Additional Journal Information:
Journal Volume: 379; Journal Issue: 30-31; Journal ID: ISSN 0375-9601
Publisher:
Elsevier
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 97 MATHEMATICS AND COMPUTING bright soliton; Bose-Einstein condensation; quantum superposition