Quantum reduced fidelity and quantum phase crossover in a spin ladder system with four-spin exchange

2012 ◽  
Vol 250 (2) ◽  
pp. 370-373 ◽  
Author(s):  
Z. Y. Sun ◽  
H. L. Huang ◽  
B. Wang
Keyword(s):  
Spin Exchange ◽  
Quantum Phase ◽  
Spin Ladder ◽  
Ladder System

scholarly journals Reply to “Comment on ‘Quantum phase transition in the four-spin exchange antiferromagnet’ ”

2010 ◽  
Vol 82 (13) ◽  
Author(s):  
Valeri N. Kotov ◽  
D. X. Yao ◽  
A. H. Castro Neto ◽  
D. K. Campbell
Keyword(s):  
Phase Transition ◽  
Quantum Phase Transition ◽  
Spin Exchange ◽  
Quantum Phase

Thermal conductivity due to magnons in high-quality single crystals of the two-leg spin-ladder system (Ca,Sr,La)14Cu24O41

2013 ◽  
Vol 154 ◽  
pp. 60-63 ◽  
Author(s):  
K. Naruse ◽  
T. Kawamata ◽  
M. Ohno ◽  
Y. Matsuoka ◽  
K. Kumagai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Crystals ◽  
Spin Ladder ◽  
High Quality ◽  
Ladder System

Metal-insulator transition in the spin ladder system (Sr0.4Ca0.6)14Cu24−xCoxO41−δ

1996 ◽  
Vol 263 (1-4) ◽  
pp. 475-481 ◽  
Author(s):  
J. Akimitsu ◽  
M. Uehara ◽  
T. Nagata ◽  
S. Matsumoto ◽  
Y. Kitaoka ◽  
...  
Keyword(s):  
Insulator Transition ◽  
Spin Ladder ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Ladder System

EXACT SOLUTIONS IN A SPATIALLY ANISOTROPIC QUANTUM SPIN LADDER MODEL HAVING TWO- AND FOUR-SPIN EXCHANGE INTERACTIONS

2009 ◽  
Vol 23 (08) ◽  
pp. 1981-2019 ◽  
Author(s):  
J. H. BARRY ◽  
J. D. COHEN ◽  
M. W. MEISEL
Keyword(s):  
Spin Exchange ◽  
Inelastic Neutron Scattering ◽  
Exchange Interactions ◽  
Inelastic Neutron ◽  
Elementary Excitation ◽  
Quantum Spin ◽  
Quantum Model ◽  
Spin Ladder ◽  
Zero Field ◽  
Ladder Model

We consider a two-leg S=1/2 quantum spin ladder model with two-spin (intra-rung) and four-spin (inter-rung) Heisenberg exchange interactions and a uniform magnetic field. Exact mappings are derived connecting the partition function and correlations in the three-parameter quantum model to those known in a two-parameter Ising chain. The quantum phase diagram of the ladder magnet is determined. Static correlations provide pertinent correlation lengths and underlie spatial fluctuation behaviors at arbitrary temperatures, including quantum fluctuations at absolute zero. Dynamic correlations in zero field are used to obtain an exact solution for the inelastic neutron scattering function Sxx(q, ω) at all temperatures, explicitly yielding the elementary excitation spectrum.

Magnetic neutron scattering in the quarter-filled spin–ladder system NaV2O5

2000 ◽  
Vol 281-282 ◽  
pp. 654-655 ◽  
Author(s):  
T. Yosihama ◽  
M. Nishi ◽  
K. Nakajima ◽  
N. Aso ◽  
K. Kakurai ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Spin Ladder ◽  
Ladder System
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