Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Roux, Filippus S."'
Autor:
Roux, Filippus S.
Heralding, which is often used for preparing quantum optical states, is studied to determine the effects of the spatiotemporal properties of the process. Incorporating all the spatiotemporal degrees of freedom, we follow a Wigner functional approach
Externí odkaz:
http://arxiv.org/abs/2404.05237
Autor:
Roux, Filippus S.
An evolution equation for multiphoton states propagating through turbulence is derived without making a Markovian approximation. The state is represented as a Wigner functional to incorporate all spatiotemporal degrees of freedom. The resulting non-M
Externí odkaz:
http://arxiv.org/abs/2309.11842
Autor:
Roux, Filippus S.
Publikováno v:
J. Phys. A: Math. Theor. 57, 225302 (2024)
A Grassmann functional phase space is formulated for the definition of fermionic Wigner functionals by identifying suitable fermionic operators that are analogues to boson quadrature operators. Instead of the Majorana operators, we use operators that
Externí odkaz:
http://arxiv.org/abs/2209.13223
Autor:
Roux, Filippus S.
An analysis of the homodyne tomography process that is often used to determine the Wigner functions of quantum optical states is performed to consider the effects of the spatiotemporal degrees of freedom. The homodyne tomography process removes those
Externí odkaz:
http://arxiv.org/abs/2204.05063
Autor:
Sephton, Bereneice, Vallés, Adam, Nape, Isaac, Cox, Mitchell A., Steinlechner, Fabian, Konrad, Thomas, Torres, Juan P., Roux, Filippus S., Forbes, Andrew
Publikováno v:
Nat. Commun. 14, 8243 (2023)
Information exchange between two distant parties, where information is shared without physically transporting it, is a crucial resource in future quantum networks. Doing so with high-dimensional states offers the promise of higher information capacit
Externí odkaz:
http://arxiv.org/abs/2111.13624
Autor:
Roux, Filippus S.
Publikováno v:
Phys. Rev. A 105, 043701 (2022)
The effects of the spatiotemporal degrees of freedom on the practical implementation of an SU(1,1) interferometry is investigated. A recently developed Wigner functional approach is used to obtain the phase sensitivity of such an SU(1,1) interferomet
Externí odkaz:
http://arxiv.org/abs/2111.08957
Autor:
Roux, Filippus S.
Publikováno v:
Journal of Optics, 23, 125201 (2021)
Computational challenges associated with the use of Wigner functions to identify non-classical properties of states are addressed with the aid of generating functions. It allows the computation of the Wigner functions of photon-subtracted states for
Externí odkaz:
http://arxiv.org/abs/2107.11129
Autor:
Roux, Filippus S.
Publikováno v:
Phys. Rev. A 104, 043514 (2021)
A detailed analysis of the stimulated parametric down-conversion (PDC) process is performed to investigate the effects of the spatiotemporal degrees of freedom. The analysis provides information that would be useful for PDC-based metrology applicatio
Externí odkaz:
http://arxiv.org/abs/2106.13575
Autor:
Roux, Filippus S.
Publikováno v:
Phys. Rev. A 103, 013701 (2021)
The role of the spatiotemporal degrees of freedom in the preparation and observation of squeezed photonic states, produced by parametric down-conversion, is investigated. The analysis is done with the aid of a functional approach under the semi-class
Externí odkaz:
http://arxiv.org/abs/2009.08244
Autor:
Roux, Filippus S.
Publikováno v:
Phys. Rev. Research 2, 033398 (2020)
Using a perturbative approach, we investigate the parametric down-conversion process without the semi-classical approximation. A Wigner functional formalism, which incorporates both the spatiotemproal degrees of freedom and the particle-number degree
Externí odkaz:
http://arxiv.org/abs/2006.08106