Single-electron qubits based on quantum ring states on solid neon surface
- URL: http://arxiv.org/abs/2311.02501v2
- Date: Thu, 30 May 2024 06:40:39 GMT
- Title: Single-electron qubits based on quantum ring states on solid neon surface
- Authors: Toshiaki Kanai, Dafei Jin, Wei Guo,
- Abstract summary: Single electrons trapped on solid neon surfaces (eNe) have recently emerged as a promising platform for charge qubits.
We show that surface bumps can naturally bind an electron, forming unique quantum ring states.
We also show that the electron's excitation energy can be tuned using a modest magnetic field to facilitate qubit operation.
- Score: 4.3049739550615875
- License: http://creativecommons.org/publicdomain/zero/1.0/
- Abstract: Single electrons trapped on solid neon surfaces (eNe) have recently emerged as a promising platform for charge qubits. Experimental results have revealed their exceptionally long coherence times, yet the actual quantum states of these trapped electrons, presumably on imperfectly flat neon surfaces, remain elusive. In this paper, we examine the electron's interactions with neon surface topography, such as bumps and valleys. By evaluating the surface charges induced by the electron, we demonstrate its strong perpendicular binding to the neon surface. The Schr\"{o}dinger equation for the electron's lateral motion on the curved 2D surface is then solved for extensive topographical variations. Our results reveal that surface bumps can naturally bind an electron, forming unique quantum ring states that align with experimental observations. We also show that the electron's excitation energy can be tuned using a modest magnetic field to facilitate qubit operation. This study offers a leap in our understanding of eNe qubit properties and provides strategic insights on minimizing charge noise and scaling the system to propel forward quantum computing architectures.
Related papers
- Free electron topological bound state induced by light beam with a twisted wavefront [1.6285435061281421]
Recent advances in ultrafast electron emission, microscopy, diffraction and coherence have demonstrated a remarkable ability to manipulate free electrons with light beams.
We present a framework for exploring free electron quantum number in ultrafast electron-light interactions.
arXiv Detail & Related papers (2024-01-01T10:50:01Z) - Coulomb interaction-driven entanglement of electrons on helium [0.0]
We theoretically investigate the generation of emphmotional entanglement between two electrons via their unscreened Coulomb interaction.
We compute the motional energy spectra of the electrons, as well as their entanglement, by diagonalizing the model Hamiltonian with respect to a single-particle Hartree product basis.
In particular, the theoretical tools developed here can be used for fine tuning and optimization of control parameters in future experiments with electrons trapped above the surface of superfluid helium or solid neon.
arXiv Detail & Related papers (2023-10-07T21:40:20Z) - Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics.
We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box.
Such states could be realized in the waveguide quantum electrodynamics platform.
arXiv Detail & Related papers (2023-03-17T09:27:02Z) - Quantum interaction of sub-relativistic aloof electrons with mesoscopic
samples [91.3755431537592]
Relativistic electrons experience very slight wave packet distortion and negligible momentum recoil when interacting with nanometer-sized samples.
Modelling fast electrons as classical point-charges provides extremely accurate theoretical predictions of energy-loss spectra.
arXiv Detail & Related papers (2022-11-14T15:22:37Z) - Self-trapping of slow electrons in the energy domain [0.0]
We show that slow electrons are subject to strong confinement in the energy domain due to the non-vanishing curvature of the electron dispersion.
The spectral trap is tunable and an appropriate choice of light field parameters can reduce the interaction dynamics to only two energy states.
arXiv Detail & Related papers (2022-09-29T15:07:11Z) - An electrically-driven single-atom `flip-flop' qubit [43.55994393060723]
Quantum information is encoded in the electron-nuclear states of a phosphorus donor.
Results pave the way to the construction of solid-state quantum processors.
arXiv Detail & Related papers (2022-02-09T13:05:12Z) - Single electrons on solid neon as a solid-state qubit platform [10.980660117562438]
Novel qubit platforms embody long coherence, fast operation, and large scalability.
electron-on-solid-neon qubit already performs near the state of the art as a charge qubit.
arXiv Detail & Related papers (2021-06-18T19:35:16Z) - Partitioning dysprosium's electronic spin to reveal entanglement in
non-classical states [55.41644538483948]
We report on an experimental study of entanglement in dysprosium's electronic spin.
Our findings open up the possibility to engineer novel types of entangled atomic ensembles.
arXiv Detail & Related papers (2021-04-29T15:02:22Z) - Motion-induced radiation due to an atom in the presence of a graphene
plane [62.997667081978825]
We study the motion-induced radiation due to the non-relativistic motion of an atom in the presence of a static graphene plate.
We show that the effect of the plate is to increase the probability of emission when the atom is near the plate and oscillates along a direction perpendicular to it.
arXiv Detail & Related papers (2021-04-15T14:15:23Z) - Motional Quantum States of Surface Electrons on Liquid Helium in a
Tilted Magnetic Field [0.0]
electrons on helium realize a atomic system where interaction between components can be engineered and controlled by simple means and with high accuracy.
Our work introduces a pure condensed-matter system of electrons on helium into the context of atomic, molecular and optical physics.
arXiv Detail & Related papers (2020-11-10T08:25:17Z) - Quantum Hall phase emerging in an array of atoms interacting with
photons [101.18253437732933]
Topological quantum phases underpin many concepts of modern physics.
Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system.
Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
arXiv Detail & Related papers (2020-03-18T14:56:39Z)
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.