%0 Generic %1 chu2021quantum %A Chu, Anjun %A He, Peiru %A Thompson, James K. %A Rey, Ana Maria %D 2021 %K Wannier-Stark gravimetry theory %T Quantum Enhanced Cavity QED Interferometer with Partially Delocalized Atoms in Lattices %U http://arxiv.org/abs/2104.04204 %X We propose a quantum enhanced interferometric protocol for gravimetry and force sensing using cold atoms in an optical lattice supported by a standing-wave cavity. By loading the atoms in partially delocalized Wannier-Stark states, it is possible to cancel the undesirable inhomogeneities arising from the mismatch between the lattice and cavity fields and to generate spin squeezed states via a uniform one-axis twisting model. The quantum enhanced sensitivity of the states combined with the subsequent application of a compound pulse sequence that allows to separate atoms by several lattice sites. This, together with the capability to load small atomic clouds in the lattice at micrometric distances from a surface, make our setup ideal for sensing short-range forces. We show that for arrays of $10^4$ atoms, our protocol can reduce the required averaging time by a factor of $10$ compared to unentangled lattice-based interferometers after accounting for primary sources of decoherence.

@misc{chu2021quantum, abstract = {We propose a quantum enhanced interferometric protocol for gravimetry and force sensing using cold atoms in an optical lattice supported by a standing-wave cavity. By loading the atoms in partially delocalized Wannier-Stark states, it is possible to cancel the undesirable inhomogeneities arising from the mismatch between the lattice and cavity fields and to generate spin squeezed states via a uniform one-axis twisting model. The quantum enhanced sensitivity of the states combined with the subsequent application of a compound pulse sequence that allows to separate atoms by several lattice sites. This, together with the capability to load small atomic clouds in the lattice at micrometric distances from a surface, make our setup ideal for sensing short-range forces. We show that for arrays of $10^4$ atoms, our protocol can reduce the required averaging time by a factor of $10$ compared to unentangled lattice-based interferometers after accounting for primary sources of decoherence.}, added-at = {2021-04-13T15:07:51.000+0200}, author = {Chu, Anjun and He, Peiru and Thompson, James K. and Rey, Ana Maria}, biburl = {https://www.bibsonomy.org/bibtex/28e7ace4aa3528585f4c229b89acd3d7c/marschu}, interhash = {06eb79da38f366af0161be445ec476fa}, intrahash = {8e7ace4aa3528585f4c229b89acd3d7c}, keywords = {Wannier-Stark gravimetry theory}, note = {cite arxiv:2104.04204Comment: 5+13 pages, 4+2 figures}, timestamp = {2021-04-13T15:07:51.000+0200}, title = {Quantum Enhanced Cavity QED Interferometer with Partially Delocalized Atoms in Lattices}, url = {http://arxiv.org/abs/2104.04204}, year = 2021 }