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相关论文: An introduction to bosonization

200 篇论文

We discuss an approach to higher dimensional bosonization of interacting fermion s based on a picture of fluctuating Fermi surface. Compared with the linearized"constructive" approach developed in Refs.[9-11] this method allows an account…

凝聚态物理 · 物理学 2009-10-22 D. V. Khveshchenko

This tutorial article gives an introduction to the methods needed to treat interacting electrons in a quantum wire with a single occupied band. Since one-dimensional Fermions cannot be described in terms of noninteracting quasiparticles,…

介观与纳米尺度物理 · 物理学 2016-08-31 Hermann Grabert

We use the recently developed tools for an exact bosonization of a finite number $N$ of non-relativistic fermions to discuss the classic Tomonaga problem. In the case of noninteracting fermions, the bosonized hamiltonian naturally splits…

高能物理 - 理论 · 物理学 2008-11-26 Avinash Dhar , Gautam Mandal

Finite temperature properties of a non-Fermi liquid system is one of the most challenging probelms in current understanding of strongly correlated electron systems. The paradigmatic arena for studying non-Fermi liquids is in one dimension,…

强关联电子 · 物理学 2018-07-18 Garry Bowen , Miklos Gulacsi

We describe two distinct approaches for bosonization in higher dimensions; one is based on a direct comparison of current correlation functions while the other relies on a Master lagrangean formalism. These are used to bosonise the Massive…

高能物理 - 理论 · 物理学 2009-10-30 R. Banerjee , E. C. Marino

Bosonization of degenerate fermions yields insight both into Landau Fermi liquids, and into non-Fermi liquids. We begin our review with a pedagogical introduction to bosonization, emphasizing its applicability in spatial dimensions greater…

强关联电子 · 物理学 2015-06-25 A. Houghton , H. -J. Kwon , J. B. Marston

Bosonization provides a powerful analytical framework to deal with one-dimensional strongly interacting fermion systems, which makes it a cornerstone in quantum many-body theory. Yet, this success comes at the expense of using effective…

强关联电子 · 物理学 2017-12-06 Izak Snyman , Serge Florens

The one-dimensional Kondo lattice model is investigated by using bosonization techniques and conformal field theory. In the half-filled band, the charge and spin gaps open for the anti-ferromagnetic Kondo coupling. Away from half-filling,…

凝聚态物理 · 物理学 2009-10-22 S. Fujimoto , N. Kawakami

We discuss an extension of the (massless) Thirring model describing interacting fermions in one dimension which are coupled to phonons and where all interactions are local. This fermion-phonon model can be solved exactly by bosonization. We…

数学物理 · 物理学 2015-12-04 Edwin Langmann , Per Moosavi

We develop a self-contained approach to bosonization and refermionization using the Keldysh functional integral. Starting from fermionic particles, we bosonize the system and obtain a description in terms of the Tomonaga-Luttinger liquid,…

量子气体 · 物理学 2016-10-27 Filippo Bovo

The theoretical description of interacting fermions in one spatial dimension is simplified by the fact that the low energy spectrum of noniteracting fermions is identical to the one of a harmonic chain. This fermion-boson transmutation…

强关联电子 · 物理学 2007-05-23 K. Schonhammer

Parafermions are fractional excitations which can be regarded as generalizations of Majorana bound states, but in contrast to the latter they require electron-electron interactions. Compared to Majorana bound states, they offer richer…

介观与纳米尺度物理 · 物理学 2020-03-18 Thomas L. Schmidt

We present a general method to bosonize systems of Fermions with infinitely many degrees of freedom, in particular systems of non-relativistic electrons at positive density, by expressing the quantized conserved electric charge- and current…

高能物理 - 理论 · 物理学 2011-07-19 J. Froehlich , R. Goetschmann , P. A. Marchetti

We study a massive Thirring-like model in 2-dimensional space-time, which contains two different species of fermions. This model is a field theoretical version of the quantum mechanical model originally proposed by Gl\"{o}ckle, Nogami and…

高能物理 - 理论 · 物理学 2009-10-31 Jiro Sakamoto , Yasunari Heike

We present an exact mapping of models of interacting fermions onto boson models. The bosons correspond to collective excitations in the initial fermionic models. This bosonization is applicable in any dimension and for any interaction…

强关联电子 · 物理学 2015-05-13 K. B. Efetov , C. Pepin , H. Meier

The purpose of this overview article, which can be viewed as a supplement to our previous review on quantum rings, [S. Viefers {\it et al}, Physica E {\bf 21} (2004), 1-35], is to highlight the differences of boson and fermion systems in…

介观与纳米尺度物理 · 物理学 2012-10-03 M. Manninen , S. Viefers , S. M. Reimann

Bosonization is one of the most significant frameworks to analyze fermionic systems. In this work, we propose a new bosonization of Dirac fermion coupled with $U(1)$ background gauge field consistent with gauge invariance, global chiral…

强关联电子 · 物理学 2019-08-20 Yuan Yao , Yoshiki Fukusumi

Building on the recent experimental achievements obtained with scanning electron microscopy on ultracold atoms, we study one-dimensional Bose gases in the crossover between the weakly (quasi-condensate) and the strongly interacting…

量子气体 · 物理学 2012-08-08 V. Guarrera , D. Muth , R. Labouvie , A. Vogler , G. Barontini , M. Fleischhauer , H. Ott

In framework of eigen-functional bosonization method, we introduce an imaginary phase field to uniquely represent electron correlation, and demonstrate that the Landau Fermi liquid theory and the Tomonaga-Luttinger liquid theory can be…

强关联电子 · 物理学 2007-05-23 Yu-Liang Liu

We bosonize the long-wavelength excitations of interacting fermions in arbitrary dimension by directly applying a suitable Hubbard-Stratonowich transformation to the Grassmannian generating functional of the fermionic correlation functions.…

凝聚态物理 · 物理学 2016-08-31 Peter Kopietz , Kurt Schoenhammer