Renormalization Theory of Stochastic GrowthAn analytical renormalization group treatment is presented of a model which, for one value of parameters, is equivalent to diffusion limited aggregation. The fractal dimension of DLA is computed to…Matthew B. Hastings·Jul 1, 1996SaveLearn
Velocity fluctuations in forced Burgers turbulenceWe propose a simple method to compute the velocity difference statistics in forced Burgers turbulence in any dimension. Within a reasonnable assumption concerning the nucleation and coalescence of…J. -P. Bouchaud, M. Mezard·Jul 1, 1996SaveLearn
Quantum Spin GlassesIsing spin glasses in a transverse field exhibit a zero temperature quantum phase transition, which is driven by quantum rather than thermal fluctuations. They constitute a universality class that is…H. Rieger, A. P. Young·Jul 1, 1996SaveLearn
An exactly solvable model of the persistent currents in presence of hard-core interaction in a one dimensional mesoscopic ringA simplest model of the persistent current in presence of many-body interaction in a mesoscopic ring is presented. The Bethe ansatz approach is used to find exact solutions. Both cases in the absence…You-Quan Li, Zhong-Shui Ma·Jul 1, 1996SaveLearn
Parametric correlation of Coulomb blockade conductance peaks in chaotic quantum dotsWe investigate the autocorrelator of conductance peak heights for quantum dots in the Coulomb blockade regime. Analytical and numerical results based on Random Matrix Theory are presented and…Henrik Bruus, Caio H. Lewenkopf, Eduardo R. Mucciolo·Jul 1, 1996SaveLearn
Exact Solutions of Low-Dimensional Reaction-Diffusion SystemsWe briefly review some common diffusion-limited reactions with emphasis on results for two-species reactions with anisotropic hopping. Our review also covers single-species reactions. The scope is…Antonio M. R. Cadilhe, M. Lawrence Glasser, Vladimir Privman·Jul 1, 1996SaveLearn
Self-Organized Short-Term MemoriesWe report short-term memory formation in a nonlinear dynamical system with many degrees of freedom. The system ``remembers'' a sequence of impulses for a transient period, but it coarsens and…S. N. Coppersmith, T. C. Jones, L. P. Kadanoff et al.·Jun 30, 1996SaveLearn
On the Collective Mode Spectrum for Composite Fermions at 1/3 Filling FactorThe collective mode spectrum of the composite fermion state 1/3 filling factor is evaluated. At zero momentum, the result coincides with the cyclotron energy at the external magnetic field value, and…Aurora Perez Martinez, Alejandro Cabo, Valia Guerra·Jun 30, 1996SaveLearn
Stable Spin Precession at one Half of Equilibrium Magnetization in Superfluid 3He-BNew stable modes of spin precession have been observed in superfluid 3He-B. These dynamical order parameter states include precession with a magnetization S=pSeq which is different from the…V. V. Dmitriev, I. V. Kosarev, M. Krusius et al.·Jun 30, 1996SaveLearn
New Two-color Dimer Models with Critical Ground StatesWe define two new models on the square lattice, in which each allowed configuration is a superposition of a covering by ``white'' dimers and one by ``black'' dimers. Each model maps…R. Raghavan, C. L. Henley, S. L. Arouh·Jun 29, 1996SaveLearn
Exponent 1/4 from the mean field approximationWe consider the magnetization of the three-dimensional ferromagnetic near the critical temperature in the mean field approximation. It is found that for some directions of easy magnetization one…Aleksey Nudelman·Jun 28, 1996SaveLearn
Optical properties of a two-dimensional electron gas at even-denominator filling fractionsThe optical properties of an electron gas in a magnetic field at filling fractions ν= 1 2m (m=1,2,3...) are investigated using the composite fermion picture. The response of the system to the…Darren J. T. Leonard, Neil F. Johnson, V. Nikos Nicopoulos et al.·Jun 28, 1996SaveLearn
Quantum Hall Transitions in (TMTSF)2PF6We have studied the temperature dependence of the integer quantum Hall transitions in the molecular crystal (TMTSF)2PF6. We find that the transition width between the quantum Hall plateaus does…S. Valfells, J. S. Brooks, Z. Wang et al.·Jun 28, 1996SaveLearn
Pairing Mechanism in Two Hubbard Models that Show dx2-y2 PairingHere we examine various aspects of the pairing mechanism for two models, the two-dimensional and two-leg ladder Hubbard models. Both of these models exhibit pairing correlations with dx2-y2…D. J. Scalapino·Jun 28, 1996SaveLearn
Pairing Mechanism in the Two-Dimensional Hubbard ModelHere we discuss Quantum Monte Carlo results for the magnetic susceptibility, single-particle spectral weight and the irreducible particle-particle interaction vertex of the two-dimensional Hubbard…D. J. Scalapino·Jun 28, 1996SaveLearn
On the anyon description of the Laughlin hole statesWe examine the anyon representation of the Laughlin quasi-holes, in particular the one-dimensional, algebraic aspects of the representation. For the cases of one and two quasi-holes an explicit…Heidi Kjønsberg, Jon Magne Leinaas·Jun 28, 1996SaveLearn
A class of ansatz wave functions for 1D spin systems and their relation to DMRGWe investigate the density matrix renormalization group (DMRG) discovered by White and show that in the case where the renormalization eventually converges to a fixed point the DMRG ground state can…Stefan Rommer, Stellan Ostlund·Jun 28, 1996SaveLearn
Spatial Structure in Mode Population Induced by Coherent Pumping in a Ballistic Quantum ChannelWe predict a spatially varying mode population to appear in a GaAs/AlGaAs-2DEG ballistic quantum channel pumped by a THz-field. If a resonant coupling between two modes is suddenly switched on at the…Ola Tageman, L. Y. Gorelik, R. I. Shekter et al.·Jun 28, 1996SaveLearn
Comment on "Transverse Force on a Quantized Vortex in a Superfluid"The result of Thouless, Ao and Niu (TAN), that the mutual friction parameter d =0, contradicts to the experiments made in rotating 3He-B by Manchester group. The Manchester group observed…G. E. Volovik·Jun 28, 1996SaveLearn
Electron Wave Filters from Inverse Scattering TheorySemiconductor heterostructures with prescribed energy dependence of the transmittance can be designed by combining: a) Padé approximant reconstruction of the S-matrix; b) inverse…Daniel Bessis, Giorgio Mantica, G. Andrei Mezincescu et al.·Jun 28, 1996SaveLearn
Temperature crossovers in cupratesWe study the temperature crossovers seen in the magnetic and transport properties of cuprates using a nearly antiferromagnetic Fermi liquid model (NAFLM). For the overdoped cuprates, we find, in…Andrey V Chubukov, David Pines, Branko P Stojkovic·Jun 27, 1996SaveLearn
Simulations of Pattern Formation in Vibrated Granular MediaWe present simulations of peak pattern formation in vibrated two-dimensional (2D) granulates and measure the dispersion relation of the pattern for various frequencies, accelerations, cell sizes, and…S. Luding, E. Clement, J. Rajchenbach et al.·Jun 27, 1996SaveLearn
Inelastic lifetimes of confined two-component electron systems in semiconductor quantum wire and quantum well structuresWe calculate Coulomb scattering lifetimes of electrons in two-subband quantum wires and in double-layer quantum wells by obtaining the quasiparticle self-energy within the framework of the…Lian Zheng, S. Das Sarma·Jun 27, 1996SaveLearn
Quantum theory for mesoscopic electric circuitsA quantum theory for mesoscopic electric circuits in accord with the discreteness of electric charges is proposed. On the basis of the theory, Schrödinger equation for the quantum LC-design and…You-Quan Li, Bin Chen·Jun 27, 1996SaveLearn
Low-Energy Electronic Excitations of the Layered Cuprates and the Hubbard ModelWe present a review of the Quantum Monte Carlo results on the magnetic, charge and single-particle excitations as well as the pairing correlations of the two-dimensional Hubbard model. We are…N. Bulut·Jun 27, 1996SaveLearn