Dynamics of the Infinite-Range Ising Spin-Glass Model in a Transverse Field
نویسندگان
چکیده
منابع مشابه
Relaxational behavior of the infinite - range Ising spin - glass in a transverse field
We study the zero-temperature behavior of the infinite-ranged Ising spin glass in a transverse field. Using spin summation techniques and Monte Carlo methods we characterize the zero-temperature quantum transition. Our results are well compatible with a value ν = 1 4 for the correlation length exponent, z = 4 for the dynamical exponent and an algebraic decay t−1 for the imaginary-time correlati...
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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 zerotemperature quantum transition. Our results are well compatible with a value ν = 4 for the correlation length exponent, z = 4 for the dynamical exponent and an algebraic decay t−1 for the imaginary-time correlation function. ...
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We report exact numerical diagonalization results of the infinite-range Ising spin glass in a transverse field Γ at zero temperature. Eigenvalues and eigenvectors are determined for various strengths of Γ and for system sizes N ≤ 16. We obtain the moments of the distribution of the spin-glass order parameter, the spin-glass susceptibility and the mass gap at different values of Γ. The disorder ...
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We study the three-dimensional quantum Ising spin glass in a transverse magnetic field following the evolution of the bond probability distribution under Renormalisation Group transformations. The phase diagram (critical temperature Tc vs transverse field Γ) we obtain shows a finite slope near T = 0, in contrast with the infinite slope for the pure case. Our results compare very well with the e...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.81.2550