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  • 1512.01158v2

    Rights statement: © 2016 American Physical Society

    Accepted author manuscript, 946 KB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

  • PhysRevLett.116.213901

    Rights statement: © 2016 American Physical Society

    Final published version, 606 KB, PDF document

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Universal sign control of coupling in tight-binding lattices

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Universal sign control of coupling in tight-binding lattices. / Keil, Robert; Poli, Charles Joseph; Heinrich, Matthias et al.
In: Physical review letters, Vol. 116, No. 21, 213901, 27.05.2016.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Keil, R, Poli, CJ, Heinrich, M, Arkinstall, J, Weihs, G, Schomerus, H & Szameit, A 2016, 'Universal sign control of coupling in tight-binding lattices', Physical review letters, vol. 116, no. 21, 213901. https://doi.org/10.1103/PhysRevLett.116.213901

APA

Keil, R., Poli, C. J., Heinrich, M., Arkinstall, J., Weihs, G., Schomerus, H., & Szameit, A. (2016). Universal sign control of coupling in tight-binding lattices. Physical review letters, 116(21), Article 213901. https://doi.org/10.1103/PhysRevLett.116.213901

Vancouver

Keil R, Poli CJ, Heinrich M, Arkinstall J, Weihs G, Schomerus H et al. Universal sign control of coupling in tight-binding lattices. Physical review letters. 2016 May 27;116(21):213901. doi: 10.1103/PhysRevLett.116.213901

Author

Keil, Robert ; Poli, Charles Joseph ; Heinrich, Matthias et al. / Universal sign control of coupling in tight-binding lattices. In: Physical review letters. 2016 ; Vol. 116, No. 21.

Bibtex

@article{46d3bfa0e7414101a734aaccfabe74d2,
title = "Universal sign control of coupling in tight-binding lattices",
abstract = "We present a method of locally inverting the sign of the coupling term in tight-binding systems, by means of inserting a judiciously designed ancillary site and eigenmode matching of the resulting vertex triplet. Our technique can be universally applied to all lattice configurations, as long as the individual sites can be detuned. We experimentally verify this method in laser-written photonic lattices and confirm both the magnitude and the sign of the coupling by interferometric measurements. Based on these findings, we demonstrate how such universal sign-flipped coupling links can be embedded into extended lattice structures to impose a Z2-gauge transformation. This opens a new avenue for investigations on topological effects arising from magnetic fields with aperiodic flux patterns or in disordered systems.",
author = "Robert Keil and Poli, {Charles Joseph} and Matthias Heinrich and Jake Arkinstall and Gregor Weihs and Henning Schomerus and Alexander Szameit",
note = "{\textcopyright} 2016 American Physical Society",
year = "2016",
month = may,
day = "27",
doi = "10.1103/PhysRevLett.116.213901",
language = "English",
volume = "116",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "21",

}

RIS

TY - JOUR

T1 - Universal sign control of coupling in tight-binding lattices

AU - Keil, Robert

AU - Poli, Charles Joseph

AU - Heinrich, Matthias

AU - Arkinstall, Jake

AU - Weihs, Gregor

AU - Schomerus, Henning

AU - Szameit, Alexander

N1 - © 2016 American Physical Society

PY - 2016/5/27

Y1 - 2016/5/27

N2 - We present a method of locally inverting the sign of the coupling term in tight-binding systems, by means of inserting a judiciously designed ancillary site and eigenmode matching of the resulting vertex triplet. Our technique can be universally applied to all lattice configurations, as long as the individual sites can be detuned. We experimentally verify this method in laser-written photonic lattices and confirm both the magnitude and the sign of the coupling by interferometric measurements. Based on these findings, we demonstrate how such universal sign-flipped coupling links can be embedded into extended lattice structures to impose a Z2-gauge transformation. This opens a new avenue for investigations on topological effects arising from magnetic fields with aperiodic flux patterns or in disordered systems.

AB - We present a method of locally inverting the sign of the coupling term in tight-binding systems, by means of inserting a judiciously designed ancillary site and eigenmode matching of the resulting vertex triplet. Our technique can be universally applied to all lattice configurations, as long as the individual sites can be detuned. We experimentally verify this method in laser-written photonic lattices and confirm both the magnitude and the sign of the coupling by interferometric measurements. Based on these findings, we demonstrate how such universal sign-flipped coupling links can be embedded into extended lattice structures to impose a Z2-gauge transformation. This opens a new avenue for investigations on topological effects arising from magnetic fields with aperiodic flux patterns or in disordered systems.

U2 - 10.1103/PhysRevLett.116.213901

DO - 10.1103/PhysRevLett.116.213901

M3 - Journal article

VL - 116

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 21

M1 - 213901

ER -