scholarly journals The Tomonaga–Luttinger liquid with quantum impurity revisited: Critical line and phase diagram

2017 ◽  
Vol 381 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Taejin Lee
Keyword(s):  
Phase Diagram ◽  
Critical Line ◽  
Luttinger Liquid ◽  
Quantum Impurity

scholarly journals Quantum impurity in a Luttinger liquid: Universal conductance with entanglement renormalization

2014 ◽  
Vol 90 (23) ◽  
Author(s):  
Ya-Lin Lo ◽  
Yun-Da Hsieh ◽  
Chang-Yu Hou ◽  
Pochung Chen ◽  
Ying-Jer Kao
Keyword(s):  
Luttinger Liquid ◽  
Quantum Impurity ◽  
Universal Conductance

scholarly journals Phase diagram of hard-core bosons on clean and disordered two-leg ladders: Mott insulator–Luttinger liquid–Bose glass

2011 ◽  
Vol 84 (5) ◽  
Author(s):  
François Crépin ◽  
Nicolas Laflorencie ◽  
Guillaume Roux ◽  
Pascal Simon
Keyword(s):  
Phase Diagram ◽  
Luttinger Liquid ◽  
Hard Core ◽  
Mott Insulator ◽  
Bose Glass

scholarly journals Towards the Identification of a Quantum Critical Line in the (p,B) Phase Diagram ofCeCoIn5with Thermal-Expansion Measurements

2011 ◽  
Vol 106 (8) ◽  
Author(s):  
S. Zaum ◽  
K. Grube ◽  
R. Schäfer ◽  
E. D. Bauer ◽  
J. D. Thompson ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Thermal Expansion ◽  
Critical Line ◽  
Quantum Critical

scholarly journals Phase diagram and pair Tomonaga-Luttinger liquid in a Bose-Hubbard model with flat bands

2013 ◽  
Vol 88 (6) ◽  
Author(s):  
Shintaro Takayoshi ◽  
Hosho Katsura ◽  
Noriaki Watanabe ◽  
Hideo Aoki
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Luttinger Liquid ◽  
Flat Bands

scholarly journals COMPETING PHASES IN SPIN-½ J1-J2 CHAIN WITH EASY-PLANE ANISOTROPY

2011 ◽  
Vol 25 (12n13) ◽  
pp. 901-908 ◽  
Author(s):  
MASAHIRO SATO ◽  
SHUNSUKE FURUKAWA ◽  
SHIGEKI ONODA ◽  
AKIRA FURUSAKI
Keyword(s):  
Phase Diagram ◽  
Ground State ◽  
Nearest Neighbor ◽  
Luttinger Liquid ◽  
Rich Variety ◽  
Narrow Region ◽  
Chiral Phases ◽  
Liquid Phases ◽  
Plane Anisotropy ◽  
Xxz Chain

We summarize our theoretical findings on the ground-state phase diagram of the spin-½ XXZ chain having competing nearest-neighbor (J1) and antiferromagnetic next-nearest-neighbor (J2) couplings. Our study is mainly concerned with the case of ferromagnetic J1, and the case of antiferromagnetic J1 is briefly reviewed for comparison. The phase diagram contains a rich variety of phases in the plane of J1/J2 versus the XXZ anisotropy Δ: vector-chiral phases, Néel phases, several dimer phases, and Tomonaga–Luttinger liquid phases. We discuss the vector-chiral order that appears for a remarkably wide parameter space, successive Néel-dimer phase transitions, and an emergent nonlocal string order in a narrow region of ferromagnetic J1 side.

MULTICRITICALITY IN STABILIZED 2D QUANTUM GRAVITY

1992 ◽  
Vol 07 (37) ◽  
pp. 3465-3477
Author(s):  
OSCAR DIEGO ◽  
JOSÉ GONZÁLEZ
Keyword(s):  
Phase Diagram ◽  
Quantum Gravity ◽  
Critical Behavior ◽  
Critical Line ◽  
Tricritical Point ◽  
Stable Phase ◽  
Multicritical Point ◽  
Stochastic Stabilization ◽  
The Matrix ◽  
Pure Gravity

We study the simplest perturbation of the matrix model for pure gravity susceptible of reaching the k=3 multicritical point in the framework of the stochastic stabilization of 2D quantum gravity. We show the existence of a line of points in the phase diagram with the genuine critical behavior of the k=2 theory. All the points of the critical line, up to the tricritical point, can be approached from a stable phase at the dominant level in 1/N expansion.

scholarly journals PHASE DIAGRAM OF A LOOP ON THE SQUARE LATTICE

1999 ◽  
Vol 10 (01) ◽  
pp. 301-308 ◽  
Author(s):  
WENAN GUO ◽  
HENK W. J. BLÖTE ◽  
BERNARD NIENHUIS
Keyword(s):  
Phase Diagram ◽  
Transfer Matrix ◽  
Critical Line ◽  
Finite Size ◽  
Square Lattice ◽  
Size Analysis ◽  
Loop Model ◽  
Multicritical Point ◽  
Variable Parameters ◽  
Special Case

The phase diagram of the O (n) model, in particular the special case n=0, is studied by means of transfer-matrix calculations on the loop representation of the O (n) model. The model is defined on the square lattice; the loops are allowed to collide at the lattice vertices, but not to intersect. The loop model contains three variable parameters that determine the loop density or temperature, the energy of a bend in a loop, and the interaction energy of colliding loop segments. A finite-size analysis of the transfer-matrix results yields the phase diagram in a special plane of the parameter space. These results confirm the existence of a multicritical point and an Ising-like critical line in the low-temperature O (n) phase.

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