Quantum phase transitions of a quasiperiodic anisotropicXYchain in a transverse magnetic field

2002 ◽  
Vol 65 (6) ◽  
Author(s):  
Peiqing Tong ◽  
Ming Zhong
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Transverse Magnetic Field ◽  
Quantum Phase Transitions ◽  
Transverse Magnetic ◽  
Quantum Phase

scholarly journals Magnetic Field- and Pressure-Induced Quantum Phase Transitions in NH4CuCl3

2005 ◽  
Vol 159 ◽  
pp. 241-245 ◽  
Author(s):  
Masashi Fujisawa ◽  
Budhy Kurniawan ◽  
Toshio Ono ◽  
Hidekazu Tanaka
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase

GENERALIZED ENTANGLEMENT AND QUANTUM PHASE TRANSITIONS

2006 ◽  
Vol 20 (19) ◽  
pp. 2760-2769 ◽  
Author(s):  
ROLANDO SOMMA ◽  
HOWARD BARNUM ◽  
EMANUEL KNILL ◽  
GERARDO ORTIZ ◽  
LORENZO VIOLA
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Condensed Matter ◽  
Transverse Magnetic ◽  
Quantum Phase ◽  
Broken Symmetry ◽  
Illustrative Case ◽  
One Dimensional ◽  
The Relationship ◽  
Qualitative Changes

Quantum phase transitions in matter are characterized by qualitative changes in some correlation functions of the system, which are ultimately related to entanglement. In this work, we study the second-order quantum phase transitions present in models of relevance to condensed-matter physics by exploiting the notion of generalized entanglement [Barnum et al., Phys. Rev. A 68, 032308 (2003)]. In particular, we focus on the illustrative case of a one-dimensional spin-1/2 Ising model in the presence of a transverse magnetic field. Our approach leads to tools useful for distinguishing between the ordered and disordered phases in the case of broken-symmetry quantum phase transitions. Possible extensions to the study of other kinds of phase transitions as well as of the relationship between generalized entanglement and computational efficiency are also discussed.

scholarly journals Cascade of Magnetic-Field-Induced Quantum Phase Transitions in a Spin-12Triangular-Lattice Antiferromagnet

2009 ◽  
Vol 102 (25) ◽  
Author(s):  
N. A. Fortune ◽  
S. T. Hannahs ◽  
Y. Yoshida ◽  
T. E. Sherline ◽  
T. Ono ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase

scholarly journals Capacitive detection of magnetic field induced quantum phase transitions in an imbalanced bilayer electron system

2020 ◽  
Vol 102 (23) ◽  
Author(s):  
S. I. Dorozhkin ◽  
A. A. Kapustin ◽  
I. B. Fedorov ◽  
V. Umansky ◽  
J. H. Smet
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Electron System ◽  
Quantum Phase ◽  
Capacitive Detection

scholarly journals Magnetic-Field Induced Quantum Phase Transitions in Triangular-Lattice Antiferromagnets

2011 ◽  
Vol 302 ◽  
pp. 012003 ◽  
Author(s):  
T Ono ◽  
H Tanaka ◽  
Y Shirata ◽  
A Matsuo ◽  
K Kindo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Triangular Lattice ◽  
Quantum Phase Transitions ◽  
Quantum Phase
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