Relation between high-energy quasiparticles of quasi-one-dimensional antiferromagnets in a magnetic field and a doublon of a Hubbard chain

被引：2

作者：

Kohno, Masanori ^{[1
]}

机构：

[1] Natl Inst Mat Sci NIMS, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan

来源：

INTERNATIONAL CONFERENCE ON FRUSTRATION IN CONDENSED MATTER (ICFCM) | 2011年 / 320卷

关键词：

FINITE TEMPERATURE; MODEL; SPIN;

D O I：

10.1088/1742-6596/320/1/012021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In spin-1/2 one-dimensional Heisenberg antiferromagnets and anisotropic triangular Heisenberg antiferromagnets, high-energy states carrying considerable spectral weights have been observed in a magnetic field using inelastic neutron scattering. Such high-energy properties cannot be explained in terms of either Nambu-Goldstone bosons due to spontaneous breaking of continuous symmetries or quasiparticles in a Tomonaga-Luttinger liquid. Here, we show that the mechanism causing the high-energy states is analogous to that of the upper Hubbard band in the one-dimensional Hubbard model, by theoretically tracing the origin of the high-energy states back to string solutions of the Bethe ansatz.

引用

页数：6

共 23 条

[11] Spinons and triplons in spatially anisotropic frustrated antiferromagnets [J].

Kohno, Masanori ;

Starykh, Oleg A. ;

Balents, Leon .

NATURE PHYSICS, 2007, 3 (11) :790-795

[12] Spectral Properties near the Mott Transition in the One-Dimensional Hubbard Model [J].

Kohno, Masanori .

PHYSICAL REVIEW LETTERS, 2010, 105 (10)

[13] Spectral Properties of Interacting One-Dimensional Spinless Fermions [J].

Kohno, Masanori ;

Arikawa, Mitsuhiro ;

Sato, Jun ;

Sakai, Kazumitsu .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2010, 79 (04)

[14] Quasiparticles of Spatially Anisotropic Triangular Antiferromagnets in a Magnetic Field [J].

Kohno, Masanori .

PHYSICAL REVIEW LETTERS, 2009, 103 (19)

[15] Dynamically Dominant Excitations of String Solutions in the Spin-1/2 Antiferromagnetic Heisenberg Chain in a Magnetic Field [J].

Kohno, Masanori .

PHYSICAL REVIEW LETTERS, 2009, 102 (03)

[16] ABSENCE OF MOTT TRANSITION IN AN EXACT SOLUTION OF SHORT-RANGE 1-BAND MODEL IN 1 DIMENSION [J].

LIEB, EH ;

WU, FY .

PHYSICAL REVIEW LETTERS, 1968, 20 (25) :1445-+

[17]

Nagamiya T., 1968, Solid State Physics, P305

[18] Spectral function of spinless fermions on a one-dimensional lattice [J].

Pereira, Rodrigo G. ;

White, Steven R. ;

Affleck, Ian .

PHYSICAL REVIEW B, 2009, 79 (16)

[19] Colloquium: Identifying the propagating charge modes in doped Mott insulators [J].

Phillips, Philip .

REVIEWS OF MODERN PHYSICS, 2010, 82 (02) :1719-1742

[20] Evolution of Electronic Structure of Doped Mott Insulators: Reconstruction of Poles and Zeros of Green's Function [J].

Sakai, Shiro ;

Motome, Yukitoshi ;

Imada, Masatoshi .

PHYSICAL REVIEW LETTERS, 2009, 102 (05)

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