activity
20132019
most citedSingle-Mode Parametric-Down-Conversion States with 50 Photons as a Source for Mesoscopic Quantum Optics

181 citations · 778 across the 15 of their papers we have counts for

collaborators

15 papers

quant-ph2019★ 49 cited

On the scalability of parametric down-conversion for generating higher-order Fock states

Johannes Tiedau, Tim J. Bartley, Georg Harder +4

Spontaneous parametric down-conversion (SPDC) is the most widely-used method to generate higher-order Fock states (). Yet, a consistent performance analysis from fundament…

quant-ph2017★ 11 cited

Trading quantum states for temporal profiles: tomography by the overlap

Johannes Tiedau, Valery S. Shchesnovich, Dmitri Mogilevtsev +5

Quantum states and the modes of the optical field they occupy are intrinsically connected. Here, we show that one can trade the knowledge of a quantum state to gain information abo…

quant-ph2017★ 55 cited

Temporal-mode measurement tomography of a quantum pulse gate

Vahid Ansari, Georg Harder, Markus Allgaier +2

Encoding quantum information in the photon temporal mode (TM) offers a robust platform for high-dimensional quantum protocols. The main practical challenge, however, is to design a…

quant-ph2016★ 87 cited

Highly efficient frequency conversion with bandwidth compression of quantum light

Markus Allgaier, Vahid Ansari, Linda Sansoni +5

Hybrid quantum networks rely on efficient interfacing of dissimilar quantum nodes, since elements based on parametric down-conversion sources, quantum dots, color centres or atoms…

quant-ph2016★ 2 cited

Extracting the physical sector of quantum states

Dmitri Mogilevtsev, Yong-Siah Teo, Jaroslav Rehacek +6

The physical nature of any quantum source guarantees the existence of an effective Hilbert space of finite dimension, the physical sector, in which its state is completely characte…

quant-ph2016★ 80 cited

Tomography and Purification of the Temporal-Mode Structure of Quantum Light

Vahid Ansari, John M. Donohue, Markus Allgaier +6

High-dimensional quantum information processing promises capabilities beyond the current state of the art, but addressing individual information-carrying modes presents a significa…