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

Journal Article · Sat Apr 11 00:00:00 EDT 2015 · Physics Letters. A

DOI:https://doi.org/10.1016/j.physleta.2015.04.001· OSTI ID:1233525

Gertjerenken, B. ^[1]; Kevrekidis, P. G. ^[2]

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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)

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: 605096; DMS-1312856; 2010239; INST 184/108-1 FUGG; AC52-06NA25396
• OSTI ID: 1233525
• Alternate ID(s): OSTI ID: 1359743
• Report Number(s): LA-UR-15-21323; PII: S0375960115003138; TRN: US1600431
• Journal Information: Physics Letters. A, Vol. 379, Issue 30-31; ISSN 0375-9601
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

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