Fractional Bloch oscillations in photonic lattices

被引：143

作者：

Corrielli, Giacomo ^{[1
,2
]}

Crespi, Andrea ^{[1
,2
]}

Della Valle, Giuseppe ^{[1
,2
]}

Longhi, Stefano ^{[1
,2
]}

Osellame, Roberto ^{[1
,2
]}

机构：

[1] CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

来源：

NATURE COMMUNICATIONS | 2013年 / 4卷

关键词：

WANNIER-STARK LADDERS; WAVE-GUIDE ARRAYS; SUPERLATTICES; PARTICLES; ATOMS;

D O I：

10.1038/ncomms2578

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Bloch oscillations, the oscillatory motion of a quantum particle in a periodic potential, are one of the most fascinating effects of coherent quantum transport. Originally studied in the context of electrons in crystals, Bloch oscillations manifest the wave nature of matter and are found in a wide variety of different physical systems. Here we report on the first experimental observation of fractional Bloch oscillations, using a photonic lattice as a model system of a two-particle extended Bose-Hubbard Hamiltonian. In our photonic simulator, the dynamics of two correlated particles hopping on a one-dimensional lattice is mapped into the motion of a single particle in a two-dimensional lattice with engineered defects and mimicked by light transport in a square waveguide lattice with a bent axis.

引用

页数：6

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