<P><I>We study the zero-temperature behaviour of the infinite-ranged Ising spin glass in a transverse field. Using spin summation and Monte Carlo methods we characterize the zero-temperature quantum transition. Our results are well compati...
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https://www.riss.kr/link?id=A107749912
1996
-
학술저널
7355-7366(12쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><I>We study the zero-temperature behaviour of the infinite-ranged Ising spin glass in a transverse field. Using spin summation and Monte Carlo methods we characterize the zero-temperature quantum transition. Our results are well compati...
<P><I>We study the zero-temperature behaviour of the infinite-ranged Ising spin glass in a transverse field. Using spin summation and Monte Carlo methods we characterize the zero-temperature quantum transition. Our results are well compatible with a value <img SRC='img1.gif' ALIGN='TOP'/> for the correlation length exponent, z=4 for the dynamical exponent and an algebraic decay <img SRC='img2.gif' ALIGN='TOP'/> for the imaginary-time correlation function. The zero-temperature Monte Carlo relaxation of the energy in the presence of the transverse field shows that the system monotonically reaches the ground-state energy due to quantum fluctuations and displays glassy effects due to the strong anisotropy in the effective Hamiltonian.</I> </P>