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We observe quantum interference of photons emitted by two continuously laser-excited single ions, independently trapped in distinct vacuum vessels. High contrast two-photon interference is observed in two experiments with different ion…

Quantum Physics · Physics 2009-11-13 S. Gerber , D. Rotter , M. Hennrich , R. Blatt , F. Rohde , C. Schuck , M. Almendros , R. Gehr , F. Dubin , J. Eschner

We report generation of a new quantum interference effect in spontaneous emission from a resonantly driven system of two identical two-level atoms due to the spatial variation of the laser phase at the positions of the atoms. This…

Quantum Physics · Physics 2008-10-06 Sumanta Das , G. S. Agarwal , Marlan O. Scully

We report on the observation of subcycle interferences of electron wave packets released during the strong field ionization of H$_2$ with cycle-shaped two-color laser fields. With a reaction microscope, channel-resolved photoelectron…

Chemical Physics · Physics 2016-12-08 Xinhua Xie , Stefan Roither , Daniil Kartashov , Li Zhang , Andrius Baltuška , Markus Kitzler

We perform a detailed analysis of above threshold ionization (ATI) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic laser fields. The locally enhanced field induced by resonance…

Atomic Physics · Physics 2015-06-15 T. Shaaran , M. F. Ciappina , M. Lewenstein

We develop general quantitative criteria for dynamic interference, a manifestation of double-slit interference in time which should be realizable with brilliant state-of-the-art high-frequency laser sources. Our analysis reveals that the…

Atomic Physics · Physics 2017-04-11 Mehrdad Baghery , Ulf Saalmann , Jan M. Rost

We report the phase control of spatial interference of resonance fluorescence from two duplicated two-level atoms, driving by two orthogonally polarized fields. In this closed-loop system, the relative phase is of crucial importance to the…

Quantum Physics · Physics 2015-05-18 Luling Jin , Yueping Niu , Shangqing Gong

We measure the photoelectron energy spectra from strong-field ionization of Kr in a two-color laser pulse consisting of a strong 400-nm field and a weak 800-nm field. The intensities of the main above-threshold ionization (ATI) and sideband…

Atomic Physics · Physics 2019-12-11 Yudi Feng , Min Li , Siqiang Luo , Kun Liu , Baojie Du , Yueming Zhou , Peixiang Lu

We calculate angle-resolved above-threshold ionization spectra for diatomic molecules in linearly polarized laser fields, employing the strong-field approximation. The interference structure resulting from the individual contributions of…

Atomic Physics · Physics 2009-11-13 H. Hetzheim , C. Figueira de Morisson Faria , W. Becker

We demonstrate the control of electron-electron correlation in frustrated double ionization (FDI) of the two-electron triatomic molecule D$_{3}^{+}$ when driven by two orthogonally polarized two-color laser fields. We employ a…

Atomic Physics · Physics 2017-09-13 A. Chen , M. F. Kling , A. Emmanouilidou

Ultraintense pulses from X-ray free-electron lasers can drive, within femtoseconds, multiple processes in the inner shells of atoms and molecules in all phases of matter. The ensuing complex ionization pathways of outer-shell electrons from…

We describe first-principles in-plane calculations of non-sequential triple ionization (NSTI) of atoms in a linearly polarized intense laser pulse. In a fully classically correlated description, all three electrons respond dynamically to…

Atomic Physics · Physics 2009-11-11 Phay J. Ho , J. H. Eberly

We investigate coherent electron dynamics in graphene, interacting with the electric field waveform of two orthogonally polarized, few-cycle laser pulses. Recently, we demonstrated that linearly polarized driving pulses lead to…

Mesoscale and Nanoscale Physics · Physics 2018-11-20 Christian Heide , Takuya Higuchi , Heiko B. Weber , Peter Hommelhoff

We estimate the role of noise in the formation of entanglement and in the appearance of single- and two-electron interference in systems of coupled one-dimensional channels semiconductors. Two cases are considered: a single-particle…

Mesoscale and Nanoscale Physics · Physics 2012-12-19 Fabrizio Buscemi , Paolo Bordone , Andrea Bertoni

We demonstrate that quantum light statistics can be used to control strong-field ionization at the tunneling step. Using a bichromatic linearly polarized field composed of a strong coherent driver and a weak bright squeezed vacuum (BSV), we…

Quantum Physics · Physics 2026-04-15 G. Singh , T. Rook , J. Rivera-Dean , C. Figueira de Morisson Faria

We present the theory of resonance fluorescence from an asymmetric quantum dot driven by a two-component electromagnetic field with two different frequencies, polarizations and amplitudes (bichromatic field) in the regime of strong…

Mesoscale and Nanoscale Physics · Physics 2017-01-26 G. Yu. Kryuchkyan , V. Shahnazaryan , O. V. Kibis , I. A. Shelykh

We report on a theoretical study of a Cs$_2$ molecule illuminated by two lasers and show how it can result in novel quantum dynamics. We reveal that these interactions facilitate the bypass of the non-crossing rule, forming Light-Induced…

Chemical Physics · Physics 2024-05-21 Edgar Barriga , Luis E. F. Foa Torres , Carlos Cárdenas

We present a general framework for quantum interference (QI) between multiple, fundamentally different processes. Our framework reveals the importance of shaped input wavefunctions in enabling QI, and predicts unprecedented interactions…

Quantum Physics · Physics 2023-10-10 J. Lim , Y. S. Ang , L. K. Ang , L. J. Wong

In strong-field ionization interferences between electron trajectories create a variety of interference structures in the final momentum distributions. Among them, the interferences between electron pathways that are driven directly to the…

The photoionization of a helium atom by short intense laser pulses is studied theoretically in the vicinity of the $2s2p\,^1P$ doubly-excited state with the intention to investigate the impact of the intensity and duration of the exciting…

Atomic Physics · Physics 2017-09-20 Anton N. Artemyev , Lorenz S. Cederbaum , Philipp V. Demekhin

We investigate photoelectron holography in bichromatic linearly polarized fields of commensurate frequencies $r\omega$ and $s\omega$, with emphasis on the existing symmetries and for which values of the relative phase between the two…

Atomic Physics · Physics 2022-07-27 T. Rook , C. Figueira de Morisson Faria