Michael Spanner
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Quantum Relativity Open
Starting with a consideration of the implication of Bell inequalities in quantum mechanics, a new quantum postulate is suggested in order to restore classical locality and causality to quantum physics: only the relative coordinates between…
General time-dependent configuration-interaction singles. I. Molecular case Open
We present a grid-based implementation of the time-dependent configuration-interaction singles method suitable for computing the strong-field ionization of small gas-phase molecules. After outlining the general equations of motion used in …
General Time-Dependent Configuration-Interaction Singles I: The Molecular Case Open
We present a grid-based implementation of the time-dependent configuration-interaction singles method suitable for computing the strong-field ionization of small gas-phase molecules. After outlining the general equations of motion used in …
Strong-field ionization of water. II. Electronic and nuclear dynamics en route to double ionization Open
We investigate the role of nuclear motion and strong-field-induced electronic couplings during the double ionization of deuterated water using momentum-resolved coincidence spectroscopy. By examining the three-body dicationic dissociation …
View article: Simulation of many-body dynamics using Rydberg excitons
Simulation of many-body dynamics using Rydberg excitons Open
The recent observation of high-lying Rydberg states of excitons in semiconductors with relatively high binding energy motivates exploring their applications in quantum nonlinear optics and quantum information processing. Here, we study Ryd…
Deep learning and high harmonic generation Open
Using machine learning, we explore the utility of various deep neural networks (NN) when applied to high harmonic generation (HHG) scenarios. First, we train the NNs to predict the time-dependent dipole and spectra of HHG emission from red…
Momentum-resolved above-threshold ionization of deuterated water Open
We present momentum-resolved coincidence measurements of strong-field single and double ionization of deuterated water (D2O) using intense few-cycle laser pulses. We measure the vector momentum of electrons and ions resulting from the lase…
Rotational Quantum Beat Lasing Without Inversion Open
In standard lasers, light amplification requires population inversion between an upper and a lower state to break the reciprocity between absorption and stimulated emission. However, in a medium prepared in a specific superposition state, …
Supplementary document for Rotational Quantum Beat Lasing Without Inversion - 4554875.pdf Open
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Generation of doubly excited Rydberg states based on Rydberg antiblockade in a cold atomic ensemble Open
Interaction between Rydberg atoms can significantly modify Rydberg excitation dynamics. Under a resonant driving field the Rydberg-Rydberg interaction in high-lying states can induce shifts in the atomic resonance such that a secondary Ryd…
High-order Harmonic Field Retrieval in Ethylene Open
The XUV field emitted by impulsively aligned ethylene molecules during high-order harmonic generation is retrieved as a function of molecular orientation. The results can be ascribed to multielectron contributions to the harmonic emission.
Publisher's Note: Deep learning and the Schrödinger equation [Phys. Rev. A <b>96</b>, 042113 (2017)] Open
Received 25 May 2018DOI:https://doi.org/10.1103/PhysRevA.97.059906©2018 American Physical SocietyPhysics Subject Headings (PhySH)Physical SystemsArtificial neural networksTechniquesMachine learningNetwork ModelsSchroedinger equationCondens…
Electron correlations and pre-collision in the re-collision picture of high harmonic generation Open
We discuss the seminal three-step model and the recollision picture in the\ncontext of high harmonic generation in molecules. In particular, we stress the\nimportance of multi-electron correlation during the first and the third of the\nthr…
Time-bin-to-polarization conversion of ultrafast photonic qubits Open
The encoding of quantum information in photonic time-bin qubits is apt for\nlong distance quantum communication schemes. In practice, due to technical\nconstraints such as detector response time, or the speed with which\nco-polarized time-…
Deep learning and the Schrödinger equation Open
We have trained a deep (convolutional) neural network to predict the\nground-state energy of an electron in four classes of confining two-dimensional\nelectrostatic potentials. On randomly generated potentials, for which there is\nno analy…
Deep learning and the Schrödinger equation Open
We have trained a deep (convolutional) neural network to predict the ground-state energy of an electron in four classes of confining two-dimensional electrostatic potentials. On randomly generated potentials, for which there is no analytic…
Raman-induced slow-light delay of THz-bandwidth pulses Open
We propose and experimentally demonstrate a scheme to generate\noptically-controlled delays based on off-resonant Raman absorption. Dispersion\nin a transparency window between two neighboring, optically-activated Raman\nabsorption lines i…
Probing Molecular Dynamics by Laser-Induced Backscattering Holography Open
We use differential holography to overcome the forward scattering problem in strong-field photoelectron holography. Our differential holograms of H_{2} and D_{2} molecules exhibit a fishbonelike structure, which arises from the backscatter…