Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Springer series in solid-state sciences

Critical Properties of Spin Chains

Satoshi Takada

Published Jan 1, 1987• 3 citations
Publisher
DOI
10.1007/978-3-642-83154-6_8

Related papers

Critical properties of frustrated spin chain with bond alternation in magnetic fields

Mamoru Usami, Sei-ichiro Suga

Physics Letters A•Mar 1, 1998•7 citations

Critical Properties of the Alternating Spin 1/2 - S Chain

David Miles Pfeffer

•Jan 1, 1994•0 citations

Magnetic and Critical Properties of Alternating Spin Chain withS=1/2, 1in Magnetic Fields

Mitsuru Fujii, Satoshi Fujimoto, Norio Kawakami

We study an integrable spin chain with an alternating array of spins S=1/2, 1 in external magnetic fields using the Bethe ansatz exact solution. The calculated magnetization possesses a cusp structure at a critical magnetic field H=H_{C}, at which the specific heat shows a divergence property. We also calculate finite-size corrections to the energy spectrum, and obtain the critical exponents of correlation functions with the use of conformal field theory (CFT). Low-energy properties of the model are described by two c=1 U(1) CFTs in HH_{C}.

arXiv:cond-mat/9611026•Journal of the Physical Society of Japan•Aug 15, 1996•21 citations

Ordering and Criticality in Spin-1 Chains

Rajiv R. P. Singh, Martin P. Gelfand

Physical Review Letters•Jan 2, 1989•2 citations

Dynamic properties of quantum spin chains

Joachim Stolze, Taras Verkholyak, Oleg Derzhko +1 more

•Oct 15, 2007•6 citations

Entanglement at the boundary of spin chains near a quantum critical point and in systems with boundary critical points

Tobias Stauber, F. Guinea

We analyze the entanglement properties of spins (qubits) attached to the boundary of spin chains near quantum critical points, or to dissipative environments, near a boundary critical point, such as Kondo-like systems or the dissipative two level system. In the first case, we show that the properties of the entanglement are significantly different from those for bulk spins. The influence of the proximity to a transition is less marked at the boundary. In the second case, our results indicate that the entanglement changes abruptly at the point where coherent quantum oscillations cease to exist. The phase transition modifies the entanglement significantly less.

arXiv:quant-ph/0403135•Physical Review A•Aug 19, 2004•15 citations
We study an integrable spin chain with an alternating array of spins S=1/2, 1 in external magnetic fields using the Bethe ansatz exact solution. The calculated magnetization possesses a cusp structure at a critical magnetic field H=H_{C}, at which the specific heat shows a divergence property. We also calculate finite-size corrections to the energy spectrum, and obtain the critical exponents of correlation functions with the use of conformal field theory (CFT). Low-energy properties of the model are described by two c=1 U(1) CFTs in HH_{C}.
We analyze the entanglement properties of spins (qubits) attached to the boundary of spin chains near quantum critical points, or to dissipative environments, near a boundary critical point, such as Kondo-like systems or the dissipative two level system. In the first case, we show that the properties of the entanglement are significantly different from those for bulk spins. The influence of the proximity to a transition is less marked at the boundary. In the second case, our results indicate that the entanglement changes abruptly at the point where coherent quantum oscillations cease to exist. The phase transition modifies the entanglement significantly less.