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Browsing by Subject "Momentum distributions"

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Anyon Hubbard Model in One-Dimensional Optical Lattices

Greschner, Sebastian; Santos, Luis (College Park, MD : American Physical Society, 2015)

Raman-assisted hopping may be used to realize the anyon Hubbard model in one-dimensional optical lattices. We propose a feasible scenario that significantly improves the proposal of T. Keilmann et al. [Nat. Commun. 2, 361 ...
Density-dependent synthetic gauge fields using periodically modulated interactions

Greschner, Sebastian; Sun, G.; Poletti, D.; Santos, Luis (College Park, MD : American Physical Society, 2014)

We show that density-dependent synthetic gauge fields may be engineered by combining periodically modulated interactions and Raman-assisted hopping in spin-dependent optical lattices. These fields lead to a density-dependent ...
Density-induced geometric frustration of ultra-cold bosons in optical lattices

Mishra, Tapan; Greschner, Sebastian; Santos, Luis (Bristol : Institute of Physics Publishing, 2016)

A density-dependent gauge field may induce density-induced geometric frustration, leading to a non-trivial interplay between density modulation and frustration, which we illustrate for the particular case of ultra-cold ...
Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap

Deuretzbacher, Frank; Cremon, J.C.; Reimann, S.M. (College Park, MD : American Physical Society, 2010)

We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending ...
High-order above-threshold ionization beyond the electric dipole approximation

Brennecke, Simon; Lein, Manfred (Bristol : Institute of Physics Publishing, 2018)

Photoelectron momentum distributions from strong-field ionization are calculated by numerical solution of the one-electron time-dependent Schrödinger equation for a model atom including effects beyond the electric dipole ...
Interference in above-threshold-ionization electron distributions from molecules

Henkel, Jost; Lein, Manfred; Engel, Volker (College Park, MD : American Physical Society, 2011)

We present quantum-mechanical studies on above-threshold ionization of molecular ions in two and three dimensions. The momentum distributions show signatures of interfering emissions from the molecular centers. These ...
Momentum distributions and numerical methods for strongly interacting one-dimensional spinor gases

Deuretzbacher, Frank; Becker, D.; Santos, Luis (College Park, MD : American Physical Society, 2016)

One-dimensional spinor gases with strong δ interaction fermionize and form a spin chain. The spatial degrees of freedom of this atom chain can be described by a mapping to spinless noninteracting fermions and the spin ...
Photoelectron circular dichroism of chiral molecules studied with a continuum-state-corrected strong-field approximation

Dreissigacker, Ingo; Lein, Manfred (College Park, MD : American Physical Society, 2014)

Motivated by recent experiments on circular dichroism in the photoelectron momentum distributions from strong-field ionization of chiral molecules [C. Lux, Angew. Chem. Int. Ed. 51, 5001 (2012)1433-785110.1002/anie.201109035; ...
Retrieval of the amplitude and phase of the dipole matrix element by attosecond electron-wave-packet interferometry

Chacon, Alexis; Lein, Manfred; Ruiz, Camilo (College Park, MD : American Physical Society, 2013)

We extend the ideas of wave-packet interferometry to implement the algorithm of spectral phase interferometry for direct electric-field reconstruction (SPIDER) for characterizing the amplitude and phase of electron wave ...
Semiclassical two-step model for strong-field ionization

Shvetsov-Shilovski, N.I.; Lein, Manfred; Madsen, L.B.; Räsänen, E.; Lemell, C.; Burgdörfer, J.; Arbó, D.G.; Tokési, K. (College Park, MD : American Physical Society, 2016)

We present a semiclassical two-step model for strong-field ionization that accounts for path interferences of tunnel-ionized electrons in the ionic potential beyond perturbation theory. Within the framework of a classical ...
Signatures of Molecular Orbital Structure in Lateral Electron Momentum Distributions from Strong-Field Ionization

Petersen, Ingo; Henkel, Jost; Lein, Manfred (College Park, MD : American Physical Society, 2015)

Strong-field ionization of aligned diatomic and polyatomic molecules such as O2, N2, C2H4, and others in circularly polarized laser fields is investigated theoretically. By calculating the emission-angle-resolved lateral ...
Spin-chain model for strongly interacting one-dimensional Bose-Fermi mixtures

Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2017)

Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering ...

Now showing items 1-12 of 12

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Browsing by Subject "Momentum distributions"

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