scholarly journals A two-dimensional algebraic quantum liquid produced by an atomic simulator of the quantum Lifshitz model

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Hoi Chun Po ◽  
Qi Zhou
Keyword(s):  
Two Dimensional ◽  
Quantum Liquid ◽  
Algebraic Quantum

CORRELATION AND LOCALIZATION OF TWO-DIMENSIONAL ELECTRONS IN A STRONG MAGNETIC FIELD

1990 ◽  
Vol 04 (05) ◽  
pp. 301-310 ◽  
Author(s):  
D. C. TSUI
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Fractional Quantum Hall Effect ◽  
Two Dimensional ◽  
Quantum Liquid ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Integral Quantum

This paper gives a brief review of some recent experiments on the localization-delocalization transition in the integral quantum Hall effect and the new quantum liquid ground states giving rise to the fractional quantum Hall effect.

scholarly journals BRAID GROUP STATISTICS IN TWO-DIMENSIONAL QUANTUM FIELD THEORY

1996 ◽  
Vol 08 (07) ◽  
pp. 907-924 ◽  
Author(s):  
C. ADLER
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Braid Group ◽  
Scattering Theory ◽  
Quantum Field ◽  
Two Dimensional ◽  
Algebraic Quantum Field Theory ◽  
Algebraic Quantum ◽  
Dimensional Minkowski Space ◽  
Braid Group Statistics

Within the framework of algebraic quantum field theory, we construct explicitly localized morphisms of a Haag-Kastler net in 1+1-dimensional Minkowski space showing abelian braid group statistics. Moreover, we investigate the scattering theory of the corresponding quantum fields.

CRITICAL FLUCTUATIONS AND QUENCHED DISORDERED TWO-DIMENSIONAL CHARGE STRIPES IN LA5/3SR1/3NIO4

2000 ◽  
Vol 14 (29n31) ◽  
pp. 3488-3493 ◽  
Author(s):  
P. D. HATTON ◽  
M. E. GHAZI ◽  
S. BROWN ◽  
S-W. CHEONG
Keyword(s):  
Two Dimensional ◽  
Liquid Crystal Phase ◽  
Quantum Liquid ◽  
Stripe Phase ◽  
Correlation Lengths ◽  
X Ray ◽  
Critical Fluctuations ◽  
X Ray Scattering ◽  
Second Order Transition ◽  
Charge Stripe

Using high-resolution x-ray scattering, we have demonstrated the existance of quenched disordered charge stripes in a single crystal of La 5/3 Sr 1/3 NiO 4 at low temperatures. Above the second-order transition critical scattering was observed due to fluctuations into the charge stripe phase. The charge stripes are shown to be two dimensional in nature both by measurements of their correlation lengths (ξ a ≈185 Å, ξ b ≈400 Å, ξ c ≈25 Å.) and by the critical exponents of the charge stripe transition. The charge stripes are disordered and that the length scale of the disorder is quenched. Detailed measurements of the correlation lengths at higher temperatures, just below the charge stripe melting temperature, display an anisotropic broadening indicative of an order-disorder transition. We ascribe these results to a smectic-nematic phase transition at approximately 225 K. Such electronic quantum liquid-crystal phase transitions have been theoretically predicted before, but these results provide the first experimental evidence for them in charge stripe nickelates.

Effect of Landau-level mixing on quantum-liquid and solid states of two-dimensional hole systems

1992 ◽  
Vol 46 (20) ◽  
pp. 13639-13642 ◽  
Author(s):  
M. B. Santos ◽  
J. Jo ◽  
Y. W. Suen ◽  
L. W. Engel ◽  
M. Shayegan
Keyword(s):  
Landau Level ◽  
Two Dimensional ◽  
Quantum Liquid ◽  
Solid States ◽  
Landau Level Mixing

Quantum liquid of vortices in the quasi-two-dimensional organic superconductorκ-(BEDT-TTF)2Cu(NCS)2

1998 ◽  
Vol 57 (17) ◽  
pp. 10889-10892 ◽  
Author(s):  
T. Sasaki ◽  
W. Biberacher ◽  
K. Neumaier ◽  
W. Hehn ◽  
K. Andres ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Quantum Liquid

scholarly journals Construction of Kink Sectors for Two-Dimensional Quantum Field Theory Models – An Algebraic Approach

1998 ◽  
Vol 10 (06) ◽  
pp. 851-891 ◽  
Author(s):  
Dirk Schlingemann
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Algebraic Approach ◽  
Vacuum State ◽  
Quantum Field ◽  
Two Dimensional ◽  
Algebraic Quantum ◽  
Free Scalar ◽  
Split Property ◽  
Text Model

Several two-dimensional quantum field theory models have more than one vacuum state. Familiar examples are the Sine-Gordon and the [Formula: see text]-model. It is known that in these models there are also states, called kink states, which interpolate different vacua. A general construction scheme for kink states in the framework of algebraic quantum field theory is developed in a previous paper. However, for the application of this method, the crucial condition is the split property for wedge algebras in the vacuum representations of the considered models. It is believed that the vacuum representations of P(ϕ)2-models fulfill this condition, but a rigorous proof is only known for the massive free scalar field. Therefore, we investigate in a construction of kink states which can directly be applied to a large class of quantum field theory models, by making use of the properties of the dynamics of a P(ϕ)2 and Yukawa2 models.

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

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