منابع مشابه
Comments on the Sachdev-Ye-Kitaev model
We study a quantum mechanical model proposed by Sachdev, Ye and Kitaev. The model consists of N Majorana fermions with random interactions of a few fermions at a time. It it tractable in the large N limit, where the classical variable is a bilocal fermion bilinear. The model becomes strongly interacting at low energies where it develops an emergent conformal symmetry. We study two and four poin...
متن کاملKitaev spin models from topological nanowire networks
G. Kells,1,2,* V. Lahtinen,3 and J. Vala1,4 1Department of Mathematical Physics, National University of Ireland, Maynooth, Ireland 2Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany 3Institute for Theoretical Physics, University of Amsterdam, Science Park 904, 1090 GL Amsterdam, The Netherlands 4Dublin Institute for ...
متن کاملSachdev 1
Economists have been puzzled by the recent trends in real wage and productivity growth. While productivity has risen steadily, the popular press has lamented that real wages have failed to keep pace. Some argue that the inclusion of benefits explains the disparity. Others suggest that labor has lost much of its bargaining power with the firm, as evidenced by a decline in unionization rates, and...
متن کاملKitaev And
Recently, Kitaev [Ki2] introduced partially ordered generalized patterns (POGPs) in the symmetric group, which further generalize the generalized permutation patterns introduced by Babson and Steingŕımsson [BS]. A POGP p is a GP some of whose letters are incomparable. In this paper, we study the generating functions (g.f.) for the number of k-ary words avoiding some POGPs. We give analogues, ex...
متن کاملKitaev honeycomb and other exotic spin models with polar molecules
We show that ultracold polar molecules pinned in an optical lattice can be used to access a variety of exotic spin models, including the Kitaev honeycomb model. Treating each molecule as a rigid rotor, we use DC electric and microwave fields to define superpositions of rotational levels as effective spin degrees of freedom, while dipole-dipole interactions give rise to interactions between the ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2017
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.95.026009