Results 11 to 20 of about 2,156,130 (43)
Combined chips for atom-optics [PDF]
Phys. Rev. A 71, 063619 (2005), 2005 We present experiments with Bose-Einstein condensates on a combined atom chip. The combined structure consists of a large-scale "carrier chip" and smaller "atom-optics chips", containing micron-sized elements. This allows us to work with condensates very close to chip surfaces without suffering from fragmentation or losses due to thermally driven spin ...
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An optical lattice on an atom chip [PDF]
Optics Letters 34, 3463 (2009), 2009 Optical dipole traps and atom chips are two very powerful tools for the quantum manipulation of neutral atoms. We demonstrate that both methods can be combined by creating an optical lattice potential on an atom chip. A red-detuned laser beam is retro-reflected using the atom chip surface as a high-quality mirror, generating a vertical array of purely ...
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Atom chip based generation of entanglement for quantum metrology [PDF]
, 2010 Atom chips provide a versatile `quantum laboratory on a microchip' for experiments with ultracold atomic gases. They have been used in experiments on diverse topics such as low-dimensional quantum gases, cavity quantum electrodynamics, atom-surface interactions, and chip-based atomic clocks and interferometers.
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Using adiabatic coupling techniques in atom-chip waveguide structures [PDF]
Phys. Scr. T140, 014029 (2010), 2010 Adiabatic techniques are well known tools in multi-level electron systems to transfer population between different states with high fidelity. Recently it has been realised that these ideas can also be used in ultra-cold atom systems to achieve coherent manipulation of the atomic centre-of-mass states.
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Ex Vacuo Atom Chip Bose-Einstein Condensate (BEC) [PDF]
, 2016 Ex vacuo atom chips, used in conjunction with a custom thin walled vacuum chamber, have enabled the rapid replacement of atom chips for magnetically trapped cold atom experiments. Atoms were trapped in $>2$ kHz magnetic traps created using high power atom chips. The thin walled vacuum chamber allowed the atoms to be trapped $\lesssim1$ mm from the atom
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Towards quantum computing with single atoms and optical cavities on atom chips [PDF]
J. Mod. Opt. 54, 1639 (2007)., 2006 We report on recent developments in the integration of optical microresonators into atom chips and describe some fabrication and implementation challenges. We also review theoretical proposals for quantum computing with single atoms based on the observation of photons leaking through the cavity mirrors.
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Bose-Einstein condensation on an atom chip [PDF]
, 2008 We report an experiment of creating Bose-Einstein condensate (BEC) on an atom chip. The chip based Z-wire current and a homogeneous bias magnetic field create a tight magnetic trap, which allows for a fast production of BEC. After an 4.17s forced radio frequency evaporative cooling, a condensate with about 3000 atoms appears.
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Manipulation and coherence of ultra-cold atoms on a superconducting atom chip [PDF]
Nature Communications 4:2380 (2013), 2013 The coherence of quantum systems is crucial to quantum information processing. While it has been demonstrated that superconducting qubits can process quantum information at microelectronics rates, it remains a challenge to preserve the coherence and therefore the quantum character of the information in these systems.
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A misaligned magneto-optical trap to enable miniaturized atom chip systems [PDF]
, 2018 Ritayan Roy +4 more
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Bose-Einstein condensates on a permanent magnetic film atom chip [PDF]
, 2005 We present a permanent magnetic film atom chip based on perpendicularly magnetized TbGdFeCo films. This chip routinely produces a Bose-Einstein condensate (BEC) of 10^5 87Rb atoms using the magnetic film potential. Fragmentation observed near the film surface provides unique opportunities to study BEC in a disordered potential.
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