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Spatially splitting nonclassical light beams is in principle prohibited due to noise contamination during beam splitting. We propose a platform based on thermal motion of atoms to realize spatial multiplexing of squeezed light. Light…

Quantum Physics · Physics 2019-11-19 Jian Sun , Weizhi Qu , Eugeniy Mikhailov , Irina Novikova , Heng Shen , Yanhong Xiao

We propose and computationally study a method for simultaneously orienting the angular momentum of asymmetric top molecules along: 1) a laboratory-fixed direction; 2) the molecular intermediate moment of inertia axis; 3) the laser field…

Quantum Physics · Physics 2022-11-21 Emil J. Zak

We demonstrate the coherent transfer of the orbital angular momentum of a photon to an atom in quantized units of hbar, using a 2-photon stimulated Raman process with Laguerre-Gaussian beams to generate an atomic vortex state in a…

Quantum Physics · Physics 2009-11-13 M. F. Andersen , C. Ryu , Pierre Clade , V. Natarajan , A. Vaziri , K. Helmerson , W. D. Phillips

Sampling is the first step to convert an analogue optical signal into a digital electrical signal. The latter can be further processed and analysed by well-known electrical signal processing methods. Optical pulse sources like mode-locked…

Optics · Physics 2016-05-10 Stefan Preussler , Gilda Raoof Mehrpoor , Thomas Schneider

We report on a new technique to split an atomic beam coherently with an easily adjustable splitting angle. In our experiment metastable helium atoms in the |{1s2s}^3S_1 M=1> state diffract from a polarization gradient light field formed by…

Atomic Physics · Physics 2013-05-29 K. F. E. M. Domen , M. A. H. M. Jansen , W. van Dijk , K. A. H. van Leeuwen

The search for quantum coherence based on isolated atoms integrated with a room temperature solid state device (so-called atomchip [1-3]) has been intensifying in the last decade, with advances being made towards applications such as…

Quantum Physics · Physics 2015-02-06 Shuyu Zhou , David Groswasser , Mark Keil , Yonathan Japha , Ron Folman

The reported new type of all-solid-state, inorganic solar cell will be discussed by a semiclassical light-matter interaction method. The molecular compound will be treated by a three times two-level coupled quantum system. The equation of…

Mesoscale and Nanoscale Physics · Physics 2013-01-16 C. Benedek

We propose an experimentally relevant protocol for the controlled generation of matter-wave dark solitons in atomic Bose-Einstein condensates (BECs). In particular, using direct numerical simulations, we show that by switching-on a…

Quantum Gases · Physics 2015-05-19 C. Wang , P. G. Kevrekidis , T. P. Horikis , D. J. Frantzeskakis

For a transition $F_e=0\leftrightarrow F_g=1$ driven by a linearly polarized light and probed by a circularly light, quantum coherence effects are investigated. Due to the coherence between the drive Rabi frequency and Zeeman splitting,…

Quantum Physics · Physics 2009-11-07 Ying Gu , Qingqing Sun , Qihuang Gong

The multiphoton quantum superposition generated by a quantum-injected optical parametric amplifier (QI-OPA) seeded by a single-photon belonging to an EPR entangled pair is made to interact with a Mirror-BEC shaped as a Bragg interference…

Quantum Physics · Physics 2008-04-10 Francesco S. Cataliotti , Francesco De Martini

The coherent control of a two-level system is among the most essential challenges in modern quantum optics. Understanding its fundamental limitations is crucial, also for the realization of next generation quantum devices. The quantum…

Quantum Physics · Physics 2023-12-19 Michael K. Koch , Vibhav Bharadwaj , Alexander Kubanek

We calculate the spectrum of the scattered light from quantum degenerate atomic gases obeying Bose-Einstein statistics. The atoms are assumed to occupy two ground states which are optically coupled through a common excited state by two low…

Condensed Matter · Physics 2009-10-28 Janne Ruostekoski , Dan F. Walls

A method for the agile generation of the optical frequencies required for laser cooling and atom interferometry of rubidium is demonstrated. It relies on fiber Bragg grating technology to filter the output of an electro-optic modulator and…

Atomic Physics · Physics 2020-11-24 C. D. Macrae , K. Bongs , M. Holynski

The fast dynamics of molecular polaritonics is scrutinized theoretically through the implementation of two-dimensional spectroscopy protocols. We derive conceptually simple and computationally efficient formulas to calculate two-dimensional…

Quantum Physics · Physics 2024-03-08 Daniela Gallego-Valencia , Lars Mewes , Johannes Feist , José Luis Sanz-Vicario

Recent theoretical investigations have indicated that rapid optical cycling should be feasible in complex polyatomic molecules with diverse constituents, geometries and symmetries. However, as a composite molecular mass grows, so does the…

Atomic Physics · Physics 2020-12-18 Konrad Wenz , Ivan Kozyryev , Rees L. McNally , Leland Aldridge , Tanya Zelevinsky

It is demonstrated theoretically that the circularly polarized irradiation of two-dimensional conducting systems can produce the composite bosons consisting of two electrons with different effective masses (different charge carriers), which…

Mesoscale and Nanoscale Physics · Physics 2021-10-20 O. V. Kibis , M. V. Boev , V. M. Kovalev

The use of off-resonant standing light waves to manipulate ultracold atoms is investigated. Previous work has illustrated that optical pulses can provide efficient beam-splitting and reflection operations for atomic wave packets. The…

Other Condensed Matter · Physics 2007-06-19 K. J. Hughes , B. Deissler , J. H. T. Burke , C. A. Sackett

Bragg diffraction of atoms by light waves has been used to create high momentum components in a Bose-Einstein condensate. Collisions between atoms from two distinct momentum wavepackets cause elastic scattering that can remove a significant…

Soft Condensed Matter · Physics 2009-10-31 Y. B. Band , M. Trippenbach , J. P. Burke , P. S. Julienne

High-visibility interference of photon echoes generated in spatially separated solid-state atomic ensembles is demonstrated. The solid state ensembles were LiNbO$_3$ waveguides doped with Erbium ions absorbing at 1.53 $\mu$m. Bright…

Supersonic beams are a prevalent source of cold molecules utilized in the study of chemical reactions, atom interferometry, gas-surface interactions, precision spectroscopy, molecular cooling and more. The triumph of this method emanates…