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We propose a novel type of composite light-matter interferometer based on a supersolid-like phase of a driven Bose-Einstein condensate coupled to a pair of degenerate counterpropagating electromagnetic modes of an optical ring cavity. The…

Quantum Physics · Physics 2019-05-22 Karol Gietka , Farokh Mivehvar , Helmut Ritsch

We propose a novel type of composite light-matter magnetometer based on a transversely driven multi-component Bose-Einstein condensate coupled to two distinct electromagnetic modes of a linear cavity. Above the critical pump strength, the…

Quantum Physics · Physics 2021-05-26 Karol Gietka , Farokh Mivehvar , Thomas Busch

We demonstrate a Raman amplifier for matter-waves, where the amplified atoms and the gain medium are in two different hyperfine states. This amplifier is based on a novel form of superradiance that arises from self-stimulated Raman…

Interferometers based on ultra-cold atoms enable an absolute measurement of inertial forces with unprecedented precision. However, their resolution is fundamentally restricted by quantum fluctuations. Improved resolutions with entangled or…

Quantum Physics · Physics 2025-05-20 Christophe Cassens , Bernd Meyer-Hoppe , Ernst Rasel , Carsten Klempt

We study matter wave bistability in a spin-1 Bose-Einstein condensate dispersively coupled to a unidirectional ring cavity. A unique feature is that the population exchange among different modes of matter fields are accomplished via the…

Quantum Gases · Physics 2015-05-14 Lu Zhou , Han Pu , Hong Y. Ling , Weiping Zhang

This review discusses progress in the new field of coherent matter waves, in particular with respect to Bose-Einstein condensates. We give a short introduction to Bose-Einstein condensation and the theoretical description of the condensate…

Other Condensed Matter · Physics 2009-11-10 K. Bongs , K. Sengstock

An interesting proposal for detecting gravitational waves involves quantum metrology of Bose-Einstein condensates (BECs). We consider a forced modulation of the BEC trap, whose frequency matches that of an incoming continuous gravitational…

General Relativity and Quantum Cosmology · Physics 2022-08-24 Matthew P. G. Robbins , Niayesh Afshordi , Alan O. Jamison , Robert B. Mann

We observe the build-up of a matter wave interference pattern from single atom detection events in a double-slit experiment. The interference arises from two overlapping atom laser beams extracted from a Rubidium Bose-Einstein condensate.…

Statistical Mechanics · Physics 2009-11-11 T. Bourdel , T. Donner , S. Ritter , A. Öttl , M. Köhl , T. Esslinger

Light-pulse atom interferometers are highly sensitive to inertial and gravitational effects. As such they are promising candidates for tests of gravitational physics. In this article the state-of-the-art and proposals for fundamental tests…

Quantum Physics · Physics 2021-07-09 Christian Ufrecht , Albert Roura , Wolfgang P. Schleich

Quantum sensors based on matter-wave interferometry are promising candidates for high-precision gravimetry and inertial sensing in space. The favorable source for the coherent matter waves in these devices are Bose-Einstein condensates. A…

We show that the gravitational acceleration can be measured with the matter-wave Ramsey interferometry, by using a nitrogen-vacancy center coupled to a nano-mechanical resonator. We propose two experimental methods to realize the…

Quantum Physics · Physics 2018-11-27 Xing-yan Chen , Zhang-qi Yin

At the heart of a Bose-Einstein condensate lies its description as a single giant matter wave. Such a Bose-Einstein condensate represents the most "classical" form of a matter wave, just as an optical laser emits the most classical form of…

Soft Condensed Matter · Physics 2009-11-07 Markus Greiner , Olaf Mandel , Theodor W. Haensch , Immanuel Bloch

Interferometric measurements with matter waves are established techniques for sensitive gravimetry, rotation sensing, and measurement of surface interactions, but compact interferometers will require techniques based on trapped geometries.…

In high-precision atomic gravimeters, a rest mass is needed to provide a gravity reference, which is typically the retro-reflecting mirror of the Raman laser beams that addresses the two hyperfine ground states of the specific free-falling…

Atomic Physics · Physics 2022-10-18 Fong En Oon , Rainer Dumke

We propose and demonstrate a new scheme for atom interferometry, using light pulses inside an optical cavity as matter wave beamsplitters. The cavity provides power enhancement, spatial filtering, and a precise beam geometry, enabling new…

We consider a multicomponent atomic Bose-Einstein condensate optically trapped in a far-off resonant dipole trap. Drawing an analogy with the optical situation, we show that this system can be regarded as an matter-wave analog of optical…

Condensed Matter · Physics 2009-10-31 Elena V. Goldstein , Pierre Meystre

We study the possibility of detecting gravitational-waves with matter-wave interferometers, where atom beams are split, deflected and recombined totally by standing light waves. Our calculation shows that the phase shift is dominated by…

General Relativity and Quantum Cosmology · Physics 2011-06-02 Dongfeng Gao , Peng Ju , Baocheng Zhang , Mingsheng Zhan

We have observed the interferometric suspension of a free-falling Bose-Einstein condensate periodically submitted to multiple-order diffraction by a vertical 1D standing wave. The various diffracted matter waves recombine coherently,…

Using an atom-cavity platform, we propose to combine the effective gauge phase of rotated neutral atoms and the superradiant phase transition to build a highly sensitive and fast quantum rotation sensor. The atoms in a well-controlled array…

Quantum Physics · Physics 2023-03-24 Jim Skulte , Jayson G. Cosme , Ludwig Mathey

We show that gravitational waves create phonons in a Bose-Einstein condensate (BEC). A traveling spacetime distortion produces particle creation resonances that correspond to the dynamical Casimir effect in a BEC phononic field contained in…

Quantum Physics · Physics 2014-08-18 Carlos Sabín , David Edward Bruschi , Mehdi Ahmadi , Ivette Fuentes
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