Matter Wave Lensing to Picokelvin Temperatures

Kovachy, Timothy; Hogan, Jason; Sugarbaker, Alex; Dickerson, Susannah; Donnelly, Christine A.; Overstreet, Chris; Kasevich, Mark A.

doi:10.1103/physrevlett.114.143004

Cited by 204 publications

(264 citation statements)

References 32 publications

(44 reference statements)

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“…Importantly, the atoms in an AI GW detector are completely unconfined, and hence there is no need for drag-free reference masses as the atoms themselves are in free fall. However, the AI proposal also requires that the atoms be cooled to picoKelvin temperatures [52], as the measurement is made using the motional states of the atoms. In contrast, our clock-based scheme requires drag-free satellite technology, but this enables the loading of atoms at microKelvin temperatures into the ground state of the optical lattice [11].…”

Section: Comparison To Other Proposalsmentioning

confidence: 99%

Gravitational wave detection with optical lattice atomic clocks

et al. 2016

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We propose a space-based gravitational wave (GW) detector consisting of two spatially separated, dragfree satellites sharing ultrastable optical laser light over a single baseline. Each satellite contains an optical lattice atomic clock, which serves as a sensitive, narrowband detector of the local frequency of the shared laser light. A synchronized two-clock comparison between the satellites will be sensitive to the effective Doppler shifts induced by incident GWs at a level competitive with other proposed space-based GW detectors, while providing complementary features. The detected signal is a differential frequency shift of the shared laser light due to the relative velocity of the satellites, and the detection window can be tuned through the control sequence applied to the atoms' internal states. This scheme enables the detection of GWs from continuous, spectrally narrow sources, such as compact binary inspirals, with frequencies ranging from ∼3 mHz-10 Hz without loss of sensitivity, thereby bridging the detection gap between spacebased and terrestrial optical interferometric GW detectors. Our proposed GW detector employs just two satellites, is compatible with integration with an optical interferometric detector, and requires only realistic improvements to existing ground-based clock and laser technologies.

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Section: Comparison To Other Proposalsmentioning

confidence: 99%

Gravitational wave detection with optical lattice atomic clocks

et al. 2016

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“…The 3D case of DKC is studied in [9,10]. In the recent work of Tim Kovachy et al, they even gain 2D Rb gas with 50 pK temperature with DKC [11]. By replacing the adiabatically decompression process with DKC, it is also possible to Contents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/optcom generate an atom system with picokelvin temperatures.…”

Section: Introductionmentioning

confidence: 98%

Comparison of different techniques in optical trap for generating picokelvin 3D atom cloud in microgravity

Yao

Luan

et al. 2016

Optics Communications

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“…One can also pursue still more active methods for increasing of the atomic sam-ple's size based on analogies to Gaussian beam optics, namely by using matter-wave lensing techniques [76] for the construction of an atomic beam expander or Galilean telescope. Such techniques have recently been employed to create mm-scale atomic clouds of 87 Rb with pK-scale temperatures [77], which for lattice light tuned near the D 2 transition would allow for a few hundred coherent tunneling events in one dimension.…”

Section: C Limitationsmentioning

confidence: 99%

Atom-optics approach to studying transport phenomena

Gadway

2015

Phys. Rev. A

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We present a simple experimental scheme, based on standard atom optics techniques, to design highly versatile model systems for the study of single particle quantum transport phenomena. The scheme is based on a discrete set of free-particle momentum states that are coupled via momentumchanging two-photon Bragg transitions, driven by pairs of interfering laser beams. In the effective lattice models that are accessible, this scheme allows for single-site detection, as well as site-resolved and dynamical control over all system parameters. We discuss two possible implementations, based on state-preserving Bragg transitions and on state-changing Raman transitions, which respectively allow for the study of nearly arbitrary single particle Abelian U(1) and non-Abelian U(2) lattice models. -for the quantum simulation of myriad physical phenomena, especially those related to condensed matter [4,5].For the study of single electron transport phenomena, photonic [6][7][8][9][10][11] and cold atom [12][13][14][15][16][17][18][19][20] simulators have made great progress in the experimental exploration of disordered and topological systems, while offering largely complementary capabilities and challenges. Photonic simulators generally permit control of system parameters and the detection of probability distributions at the microscopic, site-resolved level. However, the use of real materials as the medium for light transport makes these systems susceptible to inherent disorder in sample preparation [21] and to absorption in the material [22], and makes simulations in higher spatial dimensions and timedependent control of system parameters non-trivial. For cold atoms, pristine and dynamically variable potential landscapes can be constructed based on their interaction with laser light. However, a microscopic control over system parameters is difficult to realize in atomic systems. Moreover, finite temperatures and the absence of hardwall system boundaries have limited the observation of topological phenomena.Here, we propose an atom optics-based [23][24][25][26] approach to the study of coherent transport phenomena, which incorporates many of the desired features of atomic and photonic experimental platforms. The scheme we describe is motivated in spirit by magnetic resonance-based * bgadway@illinois.edu techniques for local manipulation via global field addressing [27,28]. In the context of studying transport phenomena, however, we consider an inhomogeneous landscape of site energies, with unique energy differences between neighboring sites, which defines unique tunneling resonances for each site-to-site link. Combined with global field addressing that can drive transitions between neighboring sites, and in particular by simultaneous driving of many such transitions in an amplitude, frequency, and phase-controlled manner, this would allow for local control over the parameters of a discrete lattice model relevant to myriad coherent transport phenomena.Atom optics offers a natural candidate system featuring a quadratic energy lan...

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Matter Wave Lensing to Picokelvin Temperatures

Cited by 204 publications

References 32 publications

Gravitational wave detection with optical lattice atomic clocks

Gravitational wave detection with optical lattice atomic clocks

Comparison of different techniques in optical trap for generating picokelvin 3D atom cloud in microgravity

Atom-optics approach to studying transport phenomena

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