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Relevant bibliographies by topics / Slave bosons

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Journal articles

Academic literature on the topic 'Slave bosons'

Author: Grafiati

Published: 23 November 2024

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Journal articles on the topic "Slave bosons"

1

Ziegler, K. "Strongly Correlated Bosons on a Lattice: A Slave-Boson Approach." Europhysics Letters (EPL) 23, no. 7 (1993): 463–67. http://dx.doi.org/10.1209/0295-5075/23/7/001.

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2

Frésard, R., and P. Wölfle. "Unified Slave Boson Representation of Spin and Charge Degrees of Freedom for Strongly Correlated Fermi Systems." International Journal of Modern Physics B 06, no. 05n06 (1992): 685–704. http://dx.doi.org/10.1142/s0217979292000414.

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We consider a slave boson representation of lattice electrons in terms of bosons for the empty, singly and doubly occupied site. The approach generalizes an earlier formulation by Kotliar and Ruckenstein. As examples the Hubbard model and the t-J model are considered. The emphasis is on a detailed derivation and discussion of the formal aspects. Simple meanfield solutions are discussed for illustrative purposes.

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3

Nori, Franco, Gergely T. Zimanyi, and Elihu Abrahams. "HARD-CORE SLAVE-BOSON DESCRIPTION OF GENERALIZED FLUX PHASES." International Journal of Modern Physics B 05, no. 01n02 (1991): 119–30. http://dx.doi.org/10.1142/s0217979291000080.

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Through a hard-core slave-boson mean-field approach to the t-J model, which describes the dynamics of holes moving in a quantum antiferromagnet, we investigate its generalized flux phases. We first study the motion of an electron gas for arbitrary fillings and fields and establish the linear proportionality between the filling factor and the optimal flux with high accuracy. Using this result, we show that if the hard-core nature of the hole bosons is taken into account, then the slave-boson mean-field approximation for the t-J Hamiltonian allows for a solution where both the spinons and the ho

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4

Kulić, Miodrag L., and Roland Zeyher. "Novel 1/N Expansion for Self-Energy and Correlation Functions of the Hubbard Model." Modern Physics Letters B 11, no. 08 (1997): 333–38. http://dx.doi.org/10.1142/s0217984997000414.

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The novel slave-free (i.e. without slave bosons and fermions) approach to the problem of strong correlations is used in studying the Hubbard (t-J) model, where the self-energy is expressed in terms of charge and spin vertex functions of Hubbard operators. A systematic 1/N expansion (N is the number of spin components) of the self-energy is carried out. In O(1) it gives the same quasiparticle spectrum as the slave boson theory. The next order O(1/N) of the self-energy Σ(k, ω) is calculated exactly by solving analytically the integral equations for the charge and spin vertices. As an example for

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5

Fröhlich, J., and P. A. Marchetti. "Slave fermions, slave bosons, and semions from bosonization of the two-dimensionalt-Jmodel." Physical Review B 46, no. 10 (1992): 6535–52. http://dx.doi.org/10.1103/physrevb.46.6535.

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6

Krawiec, Mariusz, and Karol I. Wysokiński. "Superconductivity in correlated systems: Constraint quantization of slave bosons." Physical Review B 59, no. 14 (1999): 9500–9507. http://dx.doi.org/10.1103/physrevb.59.9500.

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7

TUAN, HOANG ANH, NGUYEN TOAN THANG, and NGUYEN NGOC THUAN. "SUPERCONDUCTING IN THE NEAR HALF-FILLING HUBBARD MODEL." Modern Physics Letters B 09, no. 11n12 (1995): 711–17. http://dx.doi.org/10.1142/s0217984995000656.

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The Hubbard model of strongly correlated electron systems is considered near half-filling within the framework of a new functional integral method without slave bosons. A dynamical system of equations determining the superconducting phase of the Hubbard model is derived. Both singlet and triplet Cooper pairings are studied.

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8

Ruckenstein, Andrei E., and Stefan Schmitt-Rink. "New approach to strongly correlated systems:1Nexpansions without slave bosons." Physical Review B 38, no. 10 (1988): 7188–91. http://dx.doi.org/10.1103/physrevb.38.7188.

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9

WOJCIECHOWSKI, R., and L. KOWALEWSKI. "ON THE MAGNETOACOUSTIC OSCILLATIONS IN HEAVY FERMION COMPOUNDS." International Journal of Modern Physics B 07, no. 01n03 (1993): 67–70. http://dx.doi.org/10.1142/s0217979293000172.

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Using the Green's function technique and MFA for the slave bosons approach, we consider the influence of the magnetic field on the oscillations of the sound velocity in cerium-based heavy fermion compounds. The quasiparticle-phonon interaction is assumed to result from the volume dependence of the spin fluctuation temperature T *. We obtain magnetic oscillations of the sound velocity at finite temperature. The mass enhancement and the renormalised Fermi energy are the same as those obtained for the magnetic de Haas-van Alphen effect.

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10

Citro, Roberta, and Francesco Romeo. "Non-equilibrium slave bosons approach to quantum pumping in interacting quantum dots." Journal of Physics: Conference Series 696 (March 2016): 012014. http://dx.doi.org/10.1088/1742-6596/696/1/012014.

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