Related papers: Hanbury Brown and Twiss interference of electrons in free space from independent needle tip sources

Related papers

Quantum Signatures of Two-Electron HBT Interference in Free Space [0.0]
We investigate Hanbury Brown and Twiss interference of two electrons generated by two independent needle-tip emitters within a full quantum-mechanical framework.<n>For Coulomb-interacting electrons, we predict characteristic features absent in a semiclassical description.<n>Outside of the Coulomb-dominated region, the spatial oscillation frequency is essentially governed by fermionic exchange symmetry.
arXiv Detail & Related papers (2026-08-11T13:39:21Z)
Two Protons, Two Positrons, and Four Electrons: Covalent Bond with van der Waals Characteristics [46.03321798937855]
We focus on a paradigmatic example of positronium hydride composed of two protons, two positrons, and four electrons.<n>Our findings suggest that the ability to form delocalized proto-bonds is a more general property of quantum systems.
arXiv Detail & Related papers (2026-05-14T17:19:09Z)
Testing spooky action between free-traveling electron-positron pairs [4.004507057677153]
We investigate the entanglement and the Bell inequality violation of free-traveling electron-positron pairs generated in a fixed-target experiment. Based on this source and the prior knowledge of the entangled state, we demonstrate the feasibility of measuring the polarization correlations of the entangled $e+e-$ pairs.
arXiv Detail & Related papers (2025-02-11T14:46:49Z)
The role of antisymmetric orbitals and electron-electron interactions on the two-particle spin and valley blockade in graphene double quantum dots [0.1806830971023738]
We report on an experimental study of spin and valley blockade in two-electron bilayer graphene (BLG) double quantum dots (DQDs) The results obtained from magnetotransport measurements on two-electron BLG DQDs, where the resonant tunneling transport involves both orbital symmetric and antisymmetric two-particle states, show a rich level spectrum. We observe a magnetic field tunable spin and valley blockade, which is limited by the orbital splitting, the strength of the electron-electron interaction and the difference in the valley g-factors between the symmetric and antisymmetric twoparticle orbital states.
arXiv Detail & Related papers (2025-01-11T23:51:23Z)
The quantum Hall effect under the influence of gravity and inertia: A unified approach [44.99833362998488]
We examine how both the integer and the fractional quantum Hall effects behave under a combined influence of gravity and inertia. The general Hamiltonian for describing the combined effect of gravity, rotation and inertia on the electrons of a Hall sample is then built and the eigenstates are obtained.
arXiv Detail & Related papers (2024-03-11T18:01:55Z)
Spin-dependent edge states in two-dimensional Dirac materials with a flat band [0.0]
We investigate spin-dependent Dirac electron optics in 2D pseudospin-1 Dirac materials. electrons with a specific spin orientation (e.g., spin-down) can be trapped in a class of long-lived edge modes, generating resonant scattering.
arXiv Detail & Related papers (2024-02-22T03:24:48Z)
Relaxation of experimental parameters in a Quantum-Gravity Induced Entanglement of Masses Protocol using electromagnetic screening [0.0]
The quantum gravity-induced entanglement of masses (QGEM) experiment is used to test the quantum nature of gravity in a lab. We will consider a parallel configuration of the QGEM experiment, where we will estimate the EM-induced dephasing rate, run-by-run systematic errors which will induce dephasing, and also provide constraints on the size of the superposition.
arXiv Detail & Related papers (2023-07-14T12:08:57Z)
Spin Hall conductivity of interacting two-dimensional electron systems [0.0]
path-integral approach incorporated within the Keldysh formalism is used to derive the kinetic equation for the semiclassical Green's function. We discuss the frequency dependence of the spin Hall conductivity and further elucidate the role of electron interactions at finite temperatures for both the ballistic and diffusive regimes of transport.
arXiv Detail & Related papers (2022-08-08T03:13:13Z)
Pauli Spin Blockade in a Resonant Triple Quantum Dot Molecule [0.0]
Pauli spin blockade in quantum dot systems occurs when the charge transport is allowed only for some spin states. We theoretically investigate a Pauli spin blockade in a triple quantum dot molecule consisting of three identical quantum dots in a semiconductor.
arXiv Detail & Related papers (2021-12-29T19:52:27Z)
Chiral Dirac-like fermion in spin-orbit-free antiferromagnetic semimetals [21.85167942898987]
Dirac semimetal is a phase of matter, whose elementary excitation is described by the relativistic Dirac equation. Inspired by the flavor symmetry in particle physics, we propose a massless Dirac-like equation yet linking two Weyl fields with the identical chirality. Our work reveals a counterpart of the flavor symmetry in magnetic electronic systems, leading to further possibilities of emergent phenomena in quantum materials.
arXiv Detail & Related papers (2021-07-21T09:56:14Z)
Molecular Interactions Induced by a Static Electric Field in Quantum Mechanics and Quantum Electrodynamics [68.98428372162448]
We study the interaction between two neutral atoms or molecules subject to a uniform static electric field. Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
arXiv Detail & Related papers (2021-03-30T14:45:30Z)
Electrically tuned hyperfine spectrum in neutral Tb(II)(Cp$^{\rm{iPr5}}$)$_2$ single-molecule magnet [64.10537606150362]
Both molecular electronic and nuclear spin levels can be used as qubits. In solid state systems with dopants, an electric field was shown to effectively change the spacing between the nuclear spin qubit levels. This hyperfine Stark effect may be useful for applications of molecular nuclear spins for quantum computing.
arXiv Detail & Related papers (2020-07-31T01:48:57Z)
General quantum-mechanical solution for twisted electrons in a uniform magnetic field [68.8204255655161]
A theory of twisted (and other structured) paraxial electrons in a uniform magnetic field is developed. The observable effect of a different behavior of relativistic Laguerre-Gauss beams with opposite directions of the orbital angular momentum penetrating from the free space into a magnetic field is predicted.
arXiv Detail & Related papers (2020-05-13T16:35:10Z)
Quantum coherent spin-electric control in a molecular nanomagnet at clock transitions [57.50861918173065]
Electrical control of spins at the nanoscale offers architectural advantages in spintronics. Recent demonstrations of electric-field (E-field) sensitivities in molecular spin materials are tantalising. E-field sensitivities reported so far are rather weak, prompting the question of how to design molecules with stronger spin-electric couplings.
arXiv Detail & Related papers (2020-05-03T09:27:31Z)
Effect of phonons on the electron spin resonance absorption spectrum [62.997667081978825]
We model the effect of phonons and temperature on the electron spin resonance (ESR) signal in magnetically active systems. We find that the suppression of ESR signals is due to phonon broadening but not based on the common assumption of orbital quenching.
arXiv Detail & Related papers (2020-04-22T01:13:07Z)
Spin current generation and control in carbon nanotubes by combining rotation and magnetic field [78.72753218464803]
We study the quantum dynamics of ballistic electrons in rotating carbon nanotubes in the presence of a uniform magnetic field. By suitably combining the applied magnetic field intensity and rotation speed, one can tune one of the currents to zero while keeping the other one finite, giving rise to a spin current generator.
arXiv Detail & Related papers (2020-01-20T08:54:56Z)

This list is automatically generated from the titles and abstracts of the papers in this site.