This theory is used to calculate and discuss relativistic phase shifts in the context of matter-wave interferometry (especially atom or antiatom interferometry). In this way, many effects are introduced in a unified relativistic framework, including spin-gravitation terms: gravitational red shift, ...
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise underground laboratory LSBB in the South-East of France, it will se...
Atom and neutron interferometryWe present an analytic theory of the diffraction of (matter) waves by a lattice in the 'quasi-Bragg' regime, by which we mean the transition region between the long-interaction Bragg and 'channeling' regimes and the short-interaction Raman-Nath regime. The ...
Compared to an ideal Gaussian wavefront, the peak-valley value is PV≈λ/10 and the mean deviation is RMS≈λ/30, both measured over the 1/e2 diameter. 5 Atom interferometer A typical Ramsey-Bordé interferometry measurement is shown in Fig. 4. For a better signal-to-noise ratio, ten ...
So-called light-pulse atom interferometry involves cooling down large collections of atoms to temperatures as low as a few millionths of a degree kelvin. The chilly conditions are needed to reduce the atoms’ range of velocities, so as to increase the signal at the interferometer’s output and...
Here, we introduce twin-lattice atom interferometry exploiting Bose-Einstein condensates of rubidium-87. Our method provides symmetric momentum transfer and large areas offering a perspective for future palm-sized sensor heads with sensitivities on par with present meter-scale Sagnac devices. Our ...
Atom Interferometry and the Quantum Theory of Measurement H.-J. Briegel, B.-G. Englert, ... H. WaltherPages 217-255Purchase View chapter View abstract Select Matter-Wave Interferometers: A Synthetic Approach Book chapterAbstract only Matter-Wave Interferometers: A Synthetic Approach Christian J. ...
In this invited review in honor of 100 years since the Stern-Gerlach (SG) experiments, we describe a decade of SG interferometry on the atom chip. The SG effect has been a paradigm of quantum mechanics throughout the last century, but there has been surp
In doing so, they take advantage of matter-wave interferometry, a technique that has in recent decades given fresh impetus to studies of the wave-like nature of particles. Pioneered for simple particles such as electrons and neutrons (ref. 3 and references therein), the technique has since ...
Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne interferometry. Indeed, BECs enjoy a slowly expanding wave function, display a large spatial coherence and can be engineered and probed by optical techniques. Her