Using adiabatic coupling techniques in atom-chip waveguide structures

O’Sullivan, Brian; Morrissey, Padraic E.; Morgan, Tadhg; Busch, Thomas

doi:10.1088/0031-8949/2010/t140/014029

Cited by 11 publications

(9 citation statements)

References 28 publications

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“…One of the first experimental systems suggested for observing SAP were optical potentials generated through a microlens array [25]. By illuminating the lenses with reddetuned laser light, ultracold atoms can be trapped in the focus above the lens, with typical trapping frequencies for 87 Rb atoms on the order of 10 5 − 10 6 s −1 in the transverse directions and 10 4 − 10 5 s −1 along the laser beam direction [135,136]. This means that the traps can be adiabatically approached in the millisecond range or even faster by using optimization techniques.…”

Section: Optical Trapsmentioning

confidence: 99%

Spatial adiabatic passage: a review of recent progress

Menchon-Enrich¹,

Benseny²,

Ahufinger³

et al. 2016

Rep. Prog. Phys.

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Adiabatic techniques are known to allow for engineering quantum states with high fidelity. This requirement is currently of large interest, as applications in quantum information require the preparation and manipulation of quantum states with minimal errors. Here we review recent progress on developing techniques for the preparation of spatial states through adiabatic passage, particularly focusing on three state systems. These techniques can be applied to matter waves in external potentials, such as cold atoms or electrons, and to classical waves in waveguides, such as light or sound. CONTENTS

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Section: Optical Trapsmentioning

confidence: 99%

Spatial adiabatic passage: a review of recent progress

Menchon-Enrich¹,

Benseny²,

Ahufinger³

et al. 2016

Rep. Prog. Phys.

Self Cite

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“…Stimulated Raman adiabatic passage (STIRAP) has been widely studied for population transfer of molecules [39][40][41][42][43][44][45][46], transport of single atoms [47][48][49][50][51][52], electrons [53,54], and BECs [55][56][57][58]. The remarkable properties of this protocol have already been demonstrated in diverse areas such as chemical reaction dynamics [59], laser-induced cooling of atomic gases [60], light beams propagating in three evanescently coupled optical waveguides [61][62][63][64], sound propagation in sonic crystals [65], and control of a superconducting qubit [66].…”

Section: B Spin-selective Stirapmentioning

confidence: 99%

Spin-selective electron transfer in a quantum dot array

2018

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We propose a spin-selective coherent electron transfer in a silicon quantum dot array. Oscillating magnetic fields and temporally controlled gate voltages are utilized to separate the electron wave function into different quantum dots depending on the spin state. We introduce a nonadiabatic protocol based on π pulses and an adiabatic protocol which offer fast electron transfer and robustness against the error in the control-field pulse area, respectively. We also study a shortcut-to-adiabaticity protocol which compromises these two protocols. We show that this scheme can be extended to multielectron systems straightforwardly and used for nonlocal manipulations of electrons.

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“…While this requires dynamical potentials, a similar system with static potentials can be constructed by considering three parallel running waveguides with spatially varying coupling strength between them and an atom which travels along these guides [6]. Recently, in our previous work, a realistic atom chip system of this kind was considered [9]; however, the simulations were limited to two dimensions.…”

Section: Introductionmentioning

confidence: 99%

Coherent transport by adiabatic passage on atom chips

et al. 2013

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Adiabatic techniques offer some of the most promising tools for achieving high-fidelity control of the center-of-mass degree of freedom of single atoms. Because the main requirement of these techniques is to follow an eigenstate of the system, constraints on timing and field strength stability are usually low, especially for trapped systems. In this paper we present a detailed example of a technique to adiabatically transport a single atom between different waveguides on an atom chip. To ensure that all conditions are fulfilled, we carry out fully three-dimensional simulations of the system, using experimentally realistic parameters. We also detail our method for simulating the system in very reasonable time scales on a consumer desktop machine by leveraging the power of graphics-processing-unit computing

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Using adiabatic coupling techniques in atom-chip waveguide structures

Cited by 11 publications

References 28 publications

Spatial adiabatic passage: a review of recent progress

Spatial adiabatic passage: a review of recent progress

Spin-selective electron transfer in a quantum dot array

Coherent transport by adiabatic passage on atom chips

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