2015
DOI: 10.1088/0953-4075/48/5/055503
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Adiabatic two-photon quantum gate operations using a long-range photonic bus

Abstract: Adiabatic techniques have much potential to realise practical and robust optical waveguide devices. Traditionally photonic elements are limited to coupling schemes that rely on proximity to nearest neighbour elements. We combine adiabatic passage with a continuum based long-range optical bus to break free from such topological restraints and thereby outline a new approach to photonic quantum gate design. We explicitly show designs for adiabatic quantum gates that produce a Hadamard, 50:50 and 1/3:2/3 beam spli… Show more

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Cited by 18 publications
(18 citation statements)
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References 46 publications
(86 reference statements)
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“…The couplings start in counterintuitive order, but terminate simultaneously with equal values of their strengths. A tripod-STIRAP WG analogue was suggested by Hope et al (2015) for use as adiabatic quantum gates that produce a 50:50 and 1 3 : 2 3 beam splitter, and for a CNOT gate in a planar thin, shallow-ridge WG structure. Menchon-Enrich et al (2013) used the dependence of the coupling between WGs on the light's wavelength to experimentally demonstrate a STIRAPinspired optical device that simultaneously behaves as a low-and high-pass spectral filter.…”
Section: A Waveguide Opticsmentioning
confidence: 99%
“…The couplings start in counterintuitive order, but terminate simultaneously with equal values of their strengths. A tripod-STIRAP WG analogue was suggested by Hope et al (2015) for use as adiabatic quantum gates that produce a 50:50 and 1 3 : 2 3 beam splitter, and for a CNOT gate in a planar thin, shallow-ridge WG structure. Menchon-Enrich et al (2013) used the dependence of the coupling between WGs on the light's wavelength to experimentally demonstrate a STIRAPinspired optical device that simultaneously behaves as a low-and high-pass spectral filter.…”
Section: A Waveguide Opticsmentioning
confidence: 99%
“…The first proposals [6,7] and the first experimental demonstration [8] of a STIRAP-like process in waveguides have stimulated several studies on adiabatic light passage in waveguides by slight modifications of this concept. These include theoretical and experimental studies related to the fractional STIRAP process [9], multistate STIRAP [10][11][12], beam splitting [9,[13][14][15][16], adiabatic mode conversion [11,17], the role of nonlinear effects [18], or the use of such waveguide structures for photonic quantum gate operations [16]. Generally these approaches profit from the high robustness of the adiabatic process, leading for instance to a broadband behavior of the light spatial adiabatic passage process.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, it is desirable to suppress the power existing in this common TE slab mode while using this TE slab mode as a bus for long-range coupling. It is possible to achieve long-range coupling in thin-ridge SOI waveguides using a common TE slab bus mode without exciting this bus as well as bypassing intermediate waveguides by combining the lateral leakage behaviour and an adiabatic technique called Coherent Tunnelling Adiabatic Passage (CTAP) [49] or photonic quantum gate design [50].…”
Section: B Optical Antennas and Long Range Couplingmentioning
confidence: 99%