---
res:
  bibo_abstract:
  - In real photonic quantum systems losses are an unavoidable factor limiting the
    scalability to many modes and particles, restraining their application in fields
    as quantum information and communication. For this reason, a considerable amount
    of engineering effort has been taken in order to improve the quality of particle
    sources and system components. At the same time, data analysis and collection
    methods based on post-selection have been used to mitigate the effect of particle
    losses. This has allowed for investigating experimentally multi-particle evolutions
    where the observer lacks knowledge about the system's intermediate propagation
    states. Nonetheless, the fundamental question how losses affect the behaviour
    of the surviving subset of a multi-particle system has not been investigated so
    far. For this reason, here we study the impact of particle losses in a quantum
    walk of two photons reconstructing the output probability distributions for one
    photon conditioned on the loss of the other in a known mode and temporal step
    of our evolution network. We present the underlying theoretical scheme that we
    have devised in order to model controlled particle losses, we describe an experimental
    platform capable of implementing our theory in a time multiplexing encoding. In
    the end we show how localized particle losses change the output distributions
    without altering their asymptotic spreading properties. Finally we devise a quantum
    civilization problem, a two walker generalisation of single particle recurrence
    processes.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Federico
      foaf_name: Pegoraro, Federico
      foaf_surname: Pegoraro
      foaf_workInfoHomepage: http://www.librecat.org/personId=88928
  - foaf_Person:
      foaf_givenName: Philip
      foaf_name: Held, Philip
      foaf_surname: Held
      foaf_workInfoHomepage: http://www.librecat.org/personId=68236
  - foaf_Person:
      foaf_givenName: Sonja
      foaf_name: Barkhofen, Sonja
      foaf_surname: Barkhofen
      foaf_workInfoHomepage: http://www.librecat.org/personId=48188
  - foaf_Person:
      foaf_givenName: Benjamin
      foaf_name: Brecht, Benjamin
      foaf_surname: Brecht
      foaf_workInfoHomepage: http://www.librecat.org/personId=27150
    orcid: '0000-0003-4140-0556 '
  - foaf_Person:
      foaf_givenName: Christine
      foaf_name: Silberhorn, Christine
      foaf_surname: Silberhorn
      foaf_workInfoHomepage: http://www.librecat.org/personId=26263
  bibo_doi: 10.1088/1402-4896/acbcaa
  bibo_issue: '3'
  bibo_volume: 98
  dct_date: 2023^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0031-8949
  - http://id.crossref.org/issn/1402-4896
  dct_language: eng
  dct_publisher: IOP Publishing@
  dct_title: Dynamic conditioning of two particle discrete-time quantum walks@
...