Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems

Details Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems

1999-04-15

arxiv.org/abs/cond-mat/9904218v2

Phys. Rev. Lett. 83, 3069 (1999)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures. Results for larger numbers of chains included (up to 9). More extensive discussion of finite-size correcti

Scientific paper

10.1103/PhysRevLett.83.3069

A multi-chain mean-field theory is developed and applied to a two-dimensional system of weakly coupled S=1/2 Heisenberg chains. The environment of a chain C_0 is modeled by a number of neighbor chains C_d, d = +/-1,...,+/-n, with the edge chains (d=+/-n) coupled to a staggered field. Using a quantum Monte Carlo method, the effective (2n+1)-chain Hamiltonian is solved self-consistently for $n$ up to 4. The results are compared with simulation results for the original Hamiltonian on large rectangular lattices. Both methods show that the staggered magnetization M for small interchain couplings alpha behaves as M=A*alpha^1/2 enhanced by a multiplicative logarithmic correction.

Affiliated with

Also associated with

No associations

Rating

Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-Chain Mean-Field Theory of Quasi One-Dimensional Quantum Spin Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-144950