Spin-orbit maximally discordant mixed states
- URL: http://arxiv.org/abs/2212.03579v1
- Date: Wed, 7 Dec 2022 11:43:53 GMT
- Title: Spin-orbit maximally discordant mixed states
- Authors: D. G. Braga, I. Fonseca, W. F. Balthazar, M. S. Sarandy, J. A. O.
Huguenin
- Abstract summary: We introduce a proposal to prepare spin-obit maximally discordant mixed states by a linear optical circuit.
We discuss how to prepare non-balanced spin-orbit entangled states, applying this technique to obtain maximally discordant mixed states.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We introduce a proposal to prepare spin-obit maximally discordant mixed
states by a linear optical circuit, with quantum bits (qubits) encoded in the
polarization and transverse mode degrees of freedom of photons. In particular,
we discuss how to prepare non-balanced spin-orbit entangled states, applying
this technique to obtain maximally discordant mixed states. We present a
simulation of the optical circuit by using the Jones matrix formalism. We
performed a study of entanglement, classical and quantum correlations. The
results show excellent agreement with the underlying theory and open a new
experimental approach for addressing quantum correlations in optical setups.
Related papers
- Quantum Coherence in Reflected and Refracted Beams: A Van Cittert-Zernike Approach [2.983208024300401]
We show how light beams' coherence-polarization properties are influenced by reflection and refraction, as well as how these properties evolve upon subsequent propagation.<n>Our work establishes a robust, decoherence-avoiding mechanism for quantum state control, advancing the fundamental understanding of coherence in quantum optics.
arXiv Detail & Related papers (2025-12-15T04:12:48Z) - Photon-mediated interactions and dynamics of coherently driven quantum emitters in complex photonic environments [41.94295877935867]
Born-Markov master equations have been extensively employed in the description of quantum optical phenomena.<n>We benchmark this modeling approach for the quantum dynamics of the emitter pair against exact calculations based on a macroscopic field quantization formalism.<n>Our analysis reveals four distinct regimes of laser driving and frequency splitting that lead to markedly different levels of accuracy in the effective model.
arXiv Detail & Related papers (2025-08-01T09:38:07Z) - Optical signatures of quantum skyrmions [0.0]
We probe the quantum nature of skyrmions in frustrated magnets using Brillouin light scattering (BLS)<n>We show that, for a specific geometry, classical skyrmions produce symmetric sidebands in the BLS spectrum, whereas quantum skyrmions exhibit a distinct asymmetry arising from vacuum fluctuations of their rotation.<n>These findings establish a concrete protocol for the optical detection of non-classical features in spin textures, paving the way for exploring their role in quantum applications.
arXiv Detail & Related papers (2025-06-20T09:58:05Z) - Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Experimental investigation of discord in spin-orbit X-states [0.0]
We characterize different classes of spin-orbit X-states by performing an all-optical tomography for polarization and first-order transverse mode degrees of freedom.
Results reinforce the spin-orbit modes as an important platform for quantum information processing.
arXiv Detail & Related papers (2023-12-28T09:58:35Z) - Creating mirror-mirror quantum correlations in optomechanics [0.0]
We study the transfer of quantum correlations between two movable mirrors of two Fabry-P'erot cavities separated via broadband squeezed light and coupled via photon hopping process.
arXiv Detail & Related papers (2023-08-11T02:38:26Z) - Simulating Gaussian boson sampling quantum computers [68.8204255655161]
We briefly review recent theoretical methods to simulate experimental Gaussian boson sampling networks.
We focus mostly on methods that use phase-space representations of quantum mechanics.
A brief overview of the theory of GBS, recent experiments and other types of methods are also presented.
arXiv Detail & Related papers (2023-08-02T02:03:31Z) - Quantum Estimation of the Stokes Vector Rotation for a General Polarimetric Transformation [0.0]
We investigate the precision limits of polarization rotation angle estimation about a known rotation axis in a quantum polarimetric process.
The diattenuator and depolarizer channels, acting on the probe state, can be thought of as effective noise processes.
The effects of the noise channels as well as their ordering is analyzed on the estimation error of the rotation angle to characterize practical and optimal quantum probe states.
arXiv Detail & Related papers (2023-04-17T13:18:08Z) - Quantum emulation of the transient dynamics in the multistate
Landau-Zener model [50.591267188664666]
We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity.
Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
arXiv Detail & Related papers (2022-11-26T15:04:11Z) - Experimental Multi-state Quantum Discrimination in the Frequency Domain
with Quantum Dot Light [40.96261204117952]
In this work, we present the experimental realization of a protocol employing a time-multiplexing strategy to optimally discriminate among eight non-orthogonal states.
The experiment was built on a custom-designed bulk optics analyser setup and single photons generated by a nearly deterministic solid-state source.
Our work paves the way for more complex applications and delivers a novel approach towards high-dimensional quantum encoding and decoding operations.
arXiv Detail & Related papers (2022-09-17T12:59:09Z) - Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation.
We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
arXiv Detail & Related papers (2022-07-07T09:39:40Z) - The Optical Signatures of Stochastic Processes in Many-Body Exciton
Scattering [5.090628201595126]
We show how direct (Coulomb) and exchange coupling to the bath give rise to distinct spectral signatures.
We discuss mathematical limits on inverting spectral signatures to extract the background density of states.
arXiv Detail & Related papers (2022-07-05T15:52:41Z) - Photon-mediated Stroboscopic Quantum Simulation of a $\mathbb{Z}_{2}$
Lattice Gauge Theory [58.720142291102135]
Quantum simulation of lattice gauge theories (LGTs) aims at tackling non-perturbative particle and condensed matter physics.
One of the current challenges is to go beyond 1+1 dimensions, where four-body (plaquette) interactions, not contained naturally in quantum simulating devices, appear.
We show how to prepare the ground state and measure Wilson loops using state-of-the-art techniques in atomic physics.
arXiv Detail & Related papers (2021-07-27T18:10:08Z) - Waveguide quantum electrodynamics: collective radiance and photon-photon
correlations [151.77380156599398]
Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters.
We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
arXiv Detail & Related papers (2021-03-11T17:49:52Z) - Quantum structured light: Non-classical spin texture of twisted
single-photon pulses [8.19841678851784]
A framework for the quantum density of spin and OAM for single-photons remains elusive.
We develop a theoretical framework and put forth the concept of quantum structured light for space-time wavepackets at the single-photon level.
Our work paves the way for quantum spin-OAM physics in twisted single photon pulses.
arXiv Detail & Related papers (2021-02-26T01:08:57Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.