Electromagnetically induced walking
- URL: http://arxiv.org/abs/2202.04813v6
- Date: Thu, 21 Jul 2022 13:34:51 GMT
- Title: Electromagnetically induced walking
- Authors: Wenxi Lai
- Abstract summary: We show coherent periodic motion of single atoms in position space removing the Doppler broadening with strong coupling between the atom and a traveling light.
These results may have potential applications for the construction of atomtronic circuits.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In atomic devices, optical control and detection of neutral atoms involves
Doppler broadening due to the momentum uncertainty in atom wave packets. Here,
we show coherent periodic motion of single atoms in position space removing the
Doppler broadening with strong coupling between the atom and a traveling light.
Under the monochromatic traveling light, neutral atoms could be affected by
attractive or repulsive forces depending on their internal state, which is
analogous to the electric force acting on negatively or positively charged
particles. These results may have potential applications for the construction
of atomtronic circuits.
Related papers
- Floquet engineering of many-body states by the ponderomotive potential [1.2691047660244337]
ponderomotive force is an effective static force that a particle feels in an oscillating field.
We show that the ponderomotive potential from the incident light may be used to induce exciton condensates in semiconductors.
arXiv Detail & Related papers (2023-12-08T08:18:14Z) - The strongly driven Fermi polaron [49.81410781350196]
Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems.
We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons.
We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
arXiv Detail & Related papers (2023-08-10T17:59:51Z) - Motion induced excitation and electromagnetic radiation from an atom
facing a thin mirror [62.997667081978825]
We evaluate the probability of (de-)excitation and photon emission from a neutral, moving, non-relativistic atom, coupled to a quantum electromagnetic field and in the presence of a thin, perfectly conducting plane ("mirror")
Results extend to a more realistic model, where the would-be electron was described by a scalar variable, coupled to an (also scalar) vacuum field.
arXiv Detail & Related papers (2022-07-06T20:54:59Z) - Optical Stern-Gerlach effect via a single traveling-wave light [0.0]
spin-orbit coupling induced chiral motion in atom deflection appears under the strong atom-light interaction.
Superposition of distant matter waves connected to the arbitrary distribution of atom internal state could be predicted.
arXiv Detail & Related papers (2022-04-06T14:35:49Z) - Entangling free electrons and optical excitations [0.0]
We propose a scheme to generate pure entanglement between designated optical excitations in a cavity and separable free-electron states.
Specifically, we shape the electron wave-function profile to dramatically reduce the number of accessible cavity modes.
We exemplify this concept through a theoretical description of free-electron entanglement with degenerate and nondegenerate plasmon modes in silver nanoparticles and atomic vibrations in an inorganic molecule.
arXiv Detail & Related papers (2022-02-01T17:50:03Z) - Light propagation and atom interferometry in gravity and dilaton fields [58.80169804428422]
We study the modified propagation of light used to manipulate atoms in light-pulse atom interferometers.
Their interference signal is dominated by the matter's coupling to gravity and the dilaton.
We discuss effects from light propagation and the dilaton on different atom-interferometric setups.
arXiv Detail & Related papers (2022-01-18T15:26:19Z) - A background-free optically levitated charge sensor [50.591267188664666]
We introduce a new technique to model and eliminate dipole moment interactions limiting the performance of sensors employing levitated objects.
As a demonstration, this is applied to the search for unknown charges of a magnitude much below that of an electron.
As a by-product of the technique, the electromagnetic properties of the levitated objects can also be measured on an individual basis.
arXiv Detail & Related papers (2021-12-20T08:16:28Z) - Quantum theory of statistical radiation pressure in free space [0.0]
Light is known to exert radiation pressure on any surface it is incident upon, via the transfer of momentum from the light to the surface.
We show that the interaction of an atom with light can lead to both repulsive and attractive forces due to the absorption and emission of photons.
arXiv Detail & Related papers (2021-04-28T12:23:31Z) - 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) - Enhanced decoherence for a neutral particle sliding on a metallic
surface in vacuum [68.8204255655161]
We show that non-contact friction enhances the decoherence of the moving atom.
We suggest that measuring decoherence times through velocity dependence of coherences could indirectly demonstrate the existence of quantum friction.
arXiv Detail & Related papers (2020-11-06T17:34:35Z) - On an electrodynamic origin of quantum fluctuations [0.0]
We show that violent fluctuations are experienced by an electromagnetic charged extended particle when it is perturbed from its rest state.
We derive a series expansion of the self-potential, which in addition to rest and kinetic energy, gives rise to a new contribution that shares features with the quantum potential.
arXiv Detail & Related papers (2020-01-21T08:55:21Z)
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.