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Related papers: Time-resolved buildup of two-slit-type interferenc…

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The Young double-slit interference pattern produced by quantum objects, like photons, that move through a double-slit is regarded, by the conventional Copenhagen interpretation of Quantum Mechanics, as the evidence of the wave-like…

Quantum Physics · Physics 2017-12-01 Andrea Petrucci

We propose a two-dimensional interferometry based on electron wave packet interference with a cycle-shaped orthogonally polarized two-color laser field. With such method, sub-cycle and inter-cycle interferences can be disentangled into…

Atomic Physics · Physics 2015-06-04 Xinhua Xie

Using extreme-ultraviolet attosecond-pulse-trains, we investigate the photoionization dynamics of a Helium atom in the presence of moderately-strong (~10^12 W/cm^2) femtosecond laser pulses. The electronic structure of a laser-dressed atom…

Atomic Physics · Physics 2011-08-02 Niranjan Shivaram , Henry Timmers , Xiao-Min Tong , Arvinder S. Sandhu

Existence of different types of interference in the spectrum of radiation emitted by a doubly hard scattered electron is demonstrated. The spectrum develops oscillations in two regions: the hard, where the oscillations depend on the…

Accelerator Physics · Physics 2017-04-05 M. V. Bondarenco , N. F. Shul'ga

We show that if the laser is intense enough, it may always ionize an atom or induce transitions between discrete energy levels of the atom, no matter what is its frequency. It means in the quantum transition of an atom interacting with an…

Quantum Physics · Physics 2007-05-23 Qi-Ren Zhang

We observe spatial fringes in the interference of two beams, which are controlled by a third beam through the phenomenon of induced coherence without induced emission. We show that the interference pattern depends on the alignment of this…

Quantum Physics · Physics 2017-04-03 Armin Hochrainer , Mayukh Lahiri , Radek Lapkiewicz , Gabriela B. Lemos , Anton Zeilinger

We collect the fluorescence from two trapped atomic ions, and measure quantum interference between photons emitted from the ions. The interference of two photons is a crucial component of schemes to entangle atomic qubits based on a…

Quantum Physics · Physics 2015-06-26 P. Maunz , D. L. Moehring , M. J. Madsen , R. N. Kohn , K. C. Younge , C. Monroe

We demonstrate and characterize interference between discrete photons emitted by two separate semiconductor quantum dot states in different samples excited by a pulsed laser. Their energies are tuned into resonance using strain. The photons…

Young's double-slit interference experiment is central to quantum mechanics. While it has been demonstrated that an array of atoms can produce interference in light, it is a fundamental question to ask whether a single atom can act as a…

Quantum Physics · Physics 2023-12-27 Yijia Zhou , Xinwei Li , Weibin Li , Hao Zhang

An unexpected interference effect between four-wave mixing excitation routes in rubidium vapor is observed using a combination of a cw diode laser and a 1 GHz femtosecond pulse train. The generated coherent blue light is analyzed by…

Atomic Physics · Physics 2022-01-26 M. P. Moreno , A. A. C. de Almeida , S. S. Vianna

Quasi-elastic scattering processes have long been thought of providing the most promising signal for a first experimental detection of quantum vacuum nonlinearity. A prominent example of such a process is vacuum birefringence. However,…

Optics · Physics 2023-10-09 Chantal Sundqvist , Felix Karbstein

In this paper, the spontaneous bremsstrahlung emission from an electron scattered by two fixed nuclei in an intense laser field is investigated in details based upon the Volkov state and the Dirac-Volkov propagator. It has been found that…

Optics · Physics 2013-09-13 Ankang Li , Jiaxiang Wang , Na Ren , Pingxiao Wang , Wenjun Zhu , Xiaoya Li , Ross Hoehn , S. Kais

We investigate laser-induced nonsequential double ionization from aligned diatomic molecules, using the strong-field approximation in its length and velocity gauge formulations. Throughout, we consider that the first electron dislodges the…

Atomic Physics · Physics 2008-12-10 C. Figueira de Morisson Faria

We investigate the angle-resolved photoelectron spectra from laser-assisted photoionization for helium and neon atoms using an \textit{ab initio} method based on time-dependent surface flux and configuration interaction singles. We find…

Atomic Physics · Physics 2020-08-26 Mattias Bertolino , David Busto , Felipe Zapata , Jan Marcus Dahlström

Double electron ionisation process occurs when an intense laser pulse interacts with atoms or molecules. Exact {\it ab initio} numerical simulation of such a situation is extremely computer resources demanding, thus often one is forced to…

Variations in the spatial intensity distribution of light caused by coherent interaction with two-level atoms are determined by semi-classically calculating a term for interference between incident light and spherical radiation from the…

Atomic Physics · Physics 2012-10-18 Akifumi Takamizawa , Koichi Shimoda

Interference between two completely independent photons lies at the heart of many photonic quantum information applications such as quantum repeaters, teleportation, and quantum key distribution. Here, we report the observation of…

Quantum Physics · Physics 2021-06-07 Heonoh Kin , Danbi Kim , Jiho Park , Han Seb Moon

Photoionization of an atom $A$ by a strong laser field in the presence of a spatially well-separated neighboring atom $B$ is considered. The laser field frequency is assumed to lie below the ionization potential of atom $A$ and be resonant…

Atomic Physics · Physics 2018-10-03 J. Fedyk , A. B. Voitkiv , C. Müller

We demonstrate the existence of new nonclassical correlations in the radiation of two atoms, which are coherently driven by a continuous laser source. The photon-photon-correlations of the fluorescence light show a spatial interferene…

Quantum Physics · Physics 2015-01-15 C. Skornia , J. von Zanthier , G. S. Agarwal , E. Werner , H. Walther

We investigate laser induced nonsequential multiple ionization using a simple statistical model in which an electron recollides inelastically with its parent ion. In this collision, it thermalizes with the remaining $N-1$ bound electrons…

Atomic Physics · Physics 2007-05-23 C. Figueira de Morisson Faria , X. Liu