Alexander Spracklen
Heriot-Watt University
9 Papers
238 Citations
Alexander Spracklen is an academic researcher from Heriot-Watt University. The author has contributed to research in topics: Hubbard model & Quantum tunnelling. The author has an hindex of 5, co-authored 7 publications.
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Papers
Observation of a Localized Flat-Band State in a Photonic Lieb Lattice
Sebabrata Mukherjee,Alexander Spracklen,Debaditya Choudhury,Nathan Goldman,Nathan Goldman,Patrik Öhberg,Erika Andersson,Robert R. Thomson +7 more
TL;DR: The first experimental realization of a dispersionless state is demonstrated, in a photonic Lieb lattice formed by an array of optical waveguides, which opens an exciting door towards quantum simulation of flat-band models in a highly controllable environment.
Experimental observation of anomalous topological edge modes in a slowly driven photonic lattice.
Sebabrata Mukherjee,Alexander Spracklen,Manuel Valiente,Erika Andersson,Patrik Öhberg,Nathan Goldman,Robert R. Thomson +6 more
TL;DR: This work demonstrates the experimental observation of anomalous topological edge modes in a 2D photonic lattice, where these propagating edge states are shown to coexist with a quasi-localized bulk.
A Viewpoint on: Observation of Localized States in Lieb Photonic Lattices
Diederik Wiersma,Rodrigo A. Vicencio,Camilo Cantillano,Luis Morales-Inostroza,Cristian Mejía-Cortés,Alexander Szameit,Mario I. Molina,Alexander Spracklen,Debaditya Choudhury,Nathan Goldman,Robert R. Thomson +10 more
- 01 Jan 2015
TL;DR: In this article, the authors present the first experimental demonstration of compacton-like linear states in flat-band lattices, which exhibit three tight-binding bands, with one being perfectly flat.
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Observation of pair tunneling and coherent destruction of tunneling in arrays of optical waveguides
Sebabrata Mukherjee,Manuel Valiente,Nathan Goldman,Alexander Spracklen,Erika Andersson,Patrik Öhberg,Robert R. Thomson +6 more
TL;DR: In this paper, a photonic system that simulates the one-dimensional two-particle Hubbard model is realized by means of two-dimensional arrays of coupled optical waveguides, fabricated using femtosecond laser inscription.
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•Posted Content
Experimental simulation of two interacting particles in a one-dimensional lattice
Sebabrata Mukherjee,Manuel Valiente,Nathan Goldman,Alexander Spracklen,Erika Andersson,Patrik Öhberg,Robert R. Thomson +6 more
TL;DR: In this paper, a photonic system that simulates the dynamics of two interacting quantum particles in a one-dimensional lattice is realized by means of two-dimensional arrays of coupled optical waveguides, fabricated using femtosecond laser inscription.
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