Experimental Demonstration of Shaken-Lattice Interferometry.

  title={Experimental Demonstration of Shaken-Lattice Interferometry.},
  author={Carrie A. Weidner and Dana Z. Anderson},
  journal={Physical review letters},
  volume={120 26},
We experimentally demonstrate a shaken-lattice interferometer. Atoms are trapped in the ground Bloch state of a red-detuned optical lattice. Using a closed-loop optimization protocol based on the dcrab algorithm, we phase-modulate (shake) the lattice to transform the atom momentum state. In this way, we implement an atom beam splitter and build five interferometers of varying interrogation times T_{I}. The sensitivity of shaken-lattice interferometry is shown to scale as T_{I}^{2}, consistent… 

Figures from this paper

Simplified landscapes for optimization of shaken lattice interferometry

Motivated by recent results using shaken optical lattices to perform atom interferometry, we explore the splitting of an atom cloud trapped in a phase-modulated (‘shaken’) optical lattice. Using a

Direct measurement of the Wigner function of atoms in an optical trap

We present a scheme to directly probe the Wigner function of the motional state of a neutral atom confined in an optical trap. The proposed scheme relies on the well-established fact that the Wigner

Noise cancellation system for shaking optical lattice by controlling optical path.

It is demonstrated that the servo changes the relative phase between beams and follows the intended shaking function with 99% accuracy.

Phase-space distributions of Bose-Einstein condensates in an optical lattice: Optimal shaping and reconstruction

We apply quantum optimal control to shape the phase-space distribution of Bose-Einstein condensates in a one-dimensional optical lattice. By a time-dependent modulation of the lattice position,

Selective population of a large-angular-momentum state in an optical lattice

We propose a method to selectively populate a large angular momentum state of ultracold atoms (each with an orbital angular momentum $l \approx 2 \hbar$) in the Mott regime of a two-dimensional

Quantum State Control of a Bose-Einstein Condensate in an Optical Lattice

We report on the efficient design of quantum optimal control protocols to manipulate the motional states of an atomic Bose-Einstein condensate (BEC) in a one-dimensional optical lattice. Our

Optimal control of the transport of Bose-Einstein condensates with atom chips

Using Optimal Control Theory (OCT), it is shown that with such transport durations of the order of the trap period, one can recover the ground state of the final trap at the end of the transport.

Optimal control for generating excited state expansion in ring potential

Abstract We applied an optimal control algorithm to an ultra-cold atomic system for constructing an atomic Sagnac interferometer in a ring trap. We constructed a ring potential on an atom chip by

OPENMMF: A library for multimode driven quantum systems



Atom interferometry using a shaken optical lattice

We introduce shaken lattice interferometry with atoms trapped in a one-dimensional optical lattice. By phase modulating (shaking) the lattice, we control the momentum state of the atoms. Through a

Delocalization-enhanced Bloch oscillations and driven resonant tunneling in optical lattices for precision force measurements

In this paper, we describe and compare different methods used for the accurate determination of forces acting on matter-wave packets in optical lattices. The quantum interference nature responsible

80hk momentum separation with Bloch oscillations in an optically guided atom interferometer

We demonstrate phase sensitivity in a horizontally guided, acceleration-sensitive atom interferometer with a momentum separation of $80\ensuremath{\hbar}k$ between its arms. A fringe visibility of 7%

Interferometry with non-classical motional states of a Bose–Einstein condensate

The control sequences used to manipulate the condensate wavefunction are obtained from optimal control theory and are directly optimized to maximize the interferometric contrast, allowing a fast manipulation of the atomic ensemble compared to the intrinsic decay processes and many-body dephasing effects.

A Bose-Einstein condensate in an optical lattice

We have performed a number of experiments with a Bose-Einstein condensate (BEC) in a one-dimensional optical lattice. Making use of the small momentum spread of a BEC and standard atom optics

Reversible loss of superfluidity of a Bose–Einstein condensate in a 1D optical lattice

We apply a one-dimensional (1D) optical lattice, formed by two laser beams with a wavelength of 852 nm, to a 3D 87Rb Bose–Einstein condensate (BEC) in a shallow magnetic trap. We use Kapitza–Dirac

Bose–Einstein condensates in 1D- and 2D optical lattices

Abstract.Bose–Einstein condensates of rubidium atoms are transferred into one- and two-dimensional optical lattice potentials. The phase coherence of the condensate wavefunction in the lattice

Atom Michelson interferometer on a chip using a Bose-Einstein condensate.

An atom Michelson interferometer is implemented on an "atom chip." The chip uses lithographically patterned conductors and external magnetic fields to produce and guide a Bose-Einstein condensate.

Momentum-state engineering and control in Bose-Einstein condensates

We demonstrate theoretically the use of genetic-learning algorithms to coherently control the dynamics of a Bose-Einstein condensate. We consider specifically the situation of a condensate in an

Mean-Field Dynamics and Fisher Information in Matter Wave Interferometry.

  • S. Haine
  • Physics
    Physical review letters
  • 2016
It is argued that the relevant metric for quantifying interferometric sensitivity is the classical Fisher information, which can vary considerably between the schemes, but in all cases it is consistent with the well-known Sagnac phase shift after the matter waves have traversed a closed path.