Quantum state tomography of photon's polarization and path degrees of freedom
, 2023 Quantum state tomography (QST), the process through which the density matrix of a quantum system is characterized from measurements of specific observables, is a fundamental pillar in the fields of quantum information and computation. In this work, we propose a simple QST method to reconstruct the density matrix of two qubits encoded in the ...
Ferreira, J. L. Montenegro +1 more
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A simple scheme for expanding photonic cluster states for quantum information [PDF]
, 2010 We show how an entangled cluster state encoded in the polarization of single photons can be straightforwardly expanded by deterministically entangling additional qubits encoded in the path degree of freedom of the constituent photons.
A. Laing +26 more
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Advanced Photonics Research, 2021 The outstanding ability of optical metasurfaces to tailor light's amplitude, phase, and polarization with a subwavelength resolution has attracted big interest.
Yuttana Intaravanne +6 more
doaj +1 more source
From Poynting vector to new degree of freedom of polarization
, 2020 17 pages, 3 ...
You, Xiao-Lu, Li, Chun-Fang
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Multiplexing scheme for simplified entanglement-based large-alphabet quantum key distribution [PDF]
, 2015 We propose a practical quantum cryptographic scheme which combines high information capacity, such as provided by high-dimensional quantum entanglement, with the simplicity of a two-dimensional Clauser-Horne-Shimony-Holt (CHSH) Bell test for security ...
Dada, Adetunmise C.
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Charge polarization calculated with a microscopic model for the fission fragments of U-236 [PDF]
EPJ Web of Conferences, 2023 We investigated theoretical methods to estimate the charge polarization of the fission fragments. The method is based on the microscopic mean-field model with the nucleon degree of freedom, and is represented in the three-dimensional coordinate space for ...
Ebata Shuichiro +3 more
doaj +1 more source
Polarization qubit phase gate in driven atomic media [PDF]
, 2003 We present here an all--optical scheme for the experimental realization of a quantum phase gate. It is based on the polarization degree of freedom of two travelling single photon wave-packets and exploits giant Kerr nonlinearities that can be attained in
Carlo Ottaviani +6 more
core +2 more sources
Generation of tunable entanglement and violation of a Bell-like inequality between different degrees of freedom of a single photon [PDF]
, 2014 We demonstrate a scheme to generate noncoherent and coherent correlations, i.e., a tunable degree of entanglement, between degrees of freedom of a single photon.
D'Ambrosio, Vincenzo +6 more
core +3 more sources
Interference and complementarity for two-photon hybrid entangled states
, 2010 In this work we generate two-photon hybrid entangled states (HES), where the polarization of one photon is entangled with the transverse spatial degree of freedom of the second photon.
A. Delgado +9 more
core +1 more source
Einstein-aether theory: Dynamics of relativistic particles with spin or polarization in a G\"odel-type universe [PDF]
, 2017 In the framework of the Einstein-aether theory we consider a cosmological model, which describes the evolution of the unit dynamic vector field with activated rotational degree of freedom.
Balakin, Alexander, Popov, Vladimir
core +2 more sources