@article{63215,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>High-dimensional time-frequency encodings have the potential to significantly advance quantum information science; however, practical applications require precise knowledge of the encoded quantum states, which becomes increasingly challenging for larger Hilbert spaces. Self-guided tomography (SGT) has emerged as a practical and scalable technique for this purpose in the spatial domain. Here, we apply SGT to estimate time-frequency states using a multi-output quantum pulse gate. We achieve fidelities of more than 99% for 3- and 5-dimensional states without the need for calibration or post-processing. We demonstrate the robustness of SGT against statistical and environmental noise, highlighting its efficacy in the photon-starved regime typical of quantum information applications.</jats:p>}},
  author       = {{Serino, Laura Maria and Rambach, Markus and Brecht, Benjamin and Romero, Jacquiline and Silberhorn, Christine}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  number       = {{2}},
  publisher    = {{IOP Publishing}},
  title        = {{{Self-guided tomography of time-frequency qudits}}},
  doi          = {{10.1088/2058-9565/adb0ea}},
  volume       = {{10}},
  year         = {{2025}},
}

@article{26507,
  author       = {{Smirne, A and Nitsche, T and Egloff, D and Barkhofen, Sonja and De, S and Dhand, I and Silberhorn, Christine and Huelga, S F and Plenio, M B}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  title        = {{{Experimental control of the degree of non-classicality via quantum coherence}}},
  doi          = {{10.1088/2058-9565/aba039}},
  year         = {{2020}},
}

@article{40381,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>The phenomenon of entanglement is the basis of quantum information and quantum communication processes. Entangled systems with a large number of photons are of great interest at present because they provide a platform for streaming technologies based on photonics. In this paper we present a device which operates with four-photons and based on the Hong–Ou–Mandel interference. The presented device allows to maximize the degree of spatial entanglement and generate the highly entangled four-dimensional Bell states. Furthermore, the use of the interferometer in different regimes leads to fast interference fringes in the coincidence probability with period of oscillations twice smaller than the pump wavelength. We have a good agreement between theoretical simulations and experimental results.</jats:p>}},
  author       = {{Ferreri, A and Ansari, V and Brecht, Benjamin and Silberhorn, Christine and Sharapova, Polina R.}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  keywords     = {{Electrical and Electronic Engineering, Physics and Astronomy (miscellaneous), Materials Science (miscellaneous), Atomic and Molecular Physics, and Optics}},
  number       = {{4}},
  publisher    = {{IOP Publishing}},
  title        = {{{Spatial entanglement and state engineering via four-photon Hong–Ou–Mandel interference}}},
  doi          = {{10.1088/2058-9565/abb411}},
  volume       = {{5}},
  year         = {{2020}},
}

@article{26298,
  author       = {{Rezai, Mohammad and Sperling, Jan and Gerhardt, Ilja}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  title        = {{{What can single photons do what lasers cannot do?}}},
  doi          = {{10.1088/2058-9565/ab3d56}},
  year         = {{2019}},
}

@article{26058,
  author       = {{Luo, Kai Hong and Herrmann, Harald and Silberhorn, Christine}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  title        = {{{Temporal correlations of spectrally narrowband photon pair sources}}},
  doi          = {{10.1088/2058-9565/aa6b8e}},
  year         = {{2017}},
}

@article{21031,
  author       = {{Allgaier, Markus and Vigh, Gesche and Ansari, Vahid and Eigner, Christof and Quiring, Viktor and Ricken, Raimund and Brecht, Benjamin and Silberhorn, Christine}},
  issn         = {{2058-9565}},
  journal      = {{Quantum Science and Technology}},
  title        = {{{Fast time-domain measurements on telecom single photons}}},
  doi          = {{10.1088/2058-9565/aa7abb}},
  volume       = {{2}},
  year         = {{2017}},
}