Search Results - "Fjærestad, J. O"

A unified explanation of the Kadowaki-Woods ratio in strongly correlated metals by Powell, B. J, Jacko, A. C, Fjærestad, J. O

“…Discoveries of ratios whose values are constant within broad classes of materials have led to many deep physical insights. The Kadowaki-Woods ratio (KWR; refs…”
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Spin-wave study of entanglement and R\'{e}nyi entropy for coplanar and collinear magnetic orders in two-dimensional quantum Heisenberg antiferromagnets by Bauer, Dag-Vidar, Fjærestad, J. O

“…Phys. Rev. B 101, 195124 (2020) We use modified linear spin-wave theory (MLSWT) to study ground-state entanglement for a length-$L$ line subsystem in $L\times…”
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Staggered flux phase in a model of strongly correlated electrons by Marston, J B, Fjaerestad, J O, Sudbø, A

“…We present numerical evidence for the existence of a staggered flux (SF) phase in the half-filled two-leg t-U-V-J ladder, with true long-range order in the…”
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Phase diagram of the three-band half-filled Cu-O two-leg ladder by LEE, Sootaek, MARSTON, J. B, FJAERESTAD, J. O

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Broken time-reversal symmetry in strongly correlated ladder structures by Schollwöck, U, Chakravarty, Sudip, Fjaerestad, J O, Marston, J B, Troyer, M

“…We provide, for the first time, in a doped strongly correlated system (two-leg ladder), a controlled theoretical demonstration of the existence of a state in…”
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Non-k-diagonality in the interlayer pair-tunneling model of high-temperature superconductivity by FJAERESTAD, J. O, SUDBO, A

“…We investigate the effect of k-space broadening of the interlayer pairing kernel on the critical temperature T sub(c) and the k-dependence of the gap function…”
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Perturbation theory of interacting electrons in a quantum dot with hard-wall confinement potential by Fjærestad, J O, Matulis, A, Chao, K A

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Orbital currents and charge density waves in a generalized Hubbard ladder by Fjærestad, J.O., Marston, J.B., Schollwöck, U.

“…We study a generalized Hubbard model on the two-leg ladder at zero temperature, focusing on a parameter region with staggered flux (SF)/d-density wave (DDW)…”
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Dimer and fermionic formulations of a class of colouring problems by Fjaerestad, J. O

“…We show that the number Z of q-edge-colourings of a simple regular graph of degree q is deducible from functions describing dimers on the same graph, viz. the…”
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Schwinger boson mean field study of the $J_1$-$J_2$ Heisenberg quantum antiferromagnet on the triangular lattice by Bauer, Dag-Vidar, Fjærestad, J. O

“…Phys. Rev. B 96, 165141 (2017) We use Schwinger boson mean field theory (SBMFT) to study the ground state of the spin-$S$ triangular-lattice Heisenberg model…”
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The 3-edge-colouring problem on the 4-8 and 3-12 lattices by Fjaerestad, J. O

“…J. Stat. Mech. (2010) P01004 We consider the problem of counting the number of 3-colourings of the edges (bonds) of the 4-8 lattice and the 3-12 lattice. These…”
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Unified explanation of the Kadowaki-Woods ratio in strongly correlated materials by Jacko, A. C, Fjaerestad, J. O, Powell, B. J

“…Nature Phys. 5, 422 (2009) Discoveries of ratios whose values are constant within broad classes of materials have led to many deep physical insights. The…”
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Anomalous excitation spectra of frustrated quantum antiferromagnets by Zheng, Weihong, Fjaerestad, John O, Singh, Rajiv R P, McKenzie, Ross H, Coldea, Radu

“…We use series expansions to study the excitation spectra of spin-1/2 antiferromagnets on anisotropic triangular lattices. For the isotropic triangular lattice…”
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Infrared Hall angle in the d-density-wave state: A comparison of theory and experiment by TEWARI, Sumanta, CHAKRAVARTY, Sudip, FJAERESTAD, John Ove, NAYAK, Chetan, THOMPSON, Richard S

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Non-k-diagonality in the interlayer pair-tunneling model of high-temperature superconductivity by Fjaerestad, J. O, Sudbo, A

“…J. Low Temp. Phys. 116, 231 (1999) We investigate the effect of k-space broadening of the interlayer pairing kernel on the critical temperature T_c and the…”
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Phase diagram of the three band half-filled Cu-O two-leg ladder by Lee, S, Marston, J. B, Fjaerestad, J. O

“…Phys. Rev. B 72, 075126 (2005) We determine the phase diagram of the half-filled two-leg ladder both at weak and strong coupling, taking into account the Cu…”
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Orbital currents and charge density waves in a generalized Hubbard ladder by Fjaerestad, J. O, Marston, J. B, Schollwoeck, U

“…Ann. Phys. (N.Y.) 321, 894 (2006) We study a generalized Hubbard model on the two-leg ladder at zero temperature, focusing on a parameter region with staggered…”
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Staggered orbital currents in the half-filled two-leg ladder by Fjaerestad, J. O, Marston, J. B

“…Phys. Rev. B 65, 125106 (2002) Using Abelian bosonization with a careful treatment of the Klein factors, we show that a certain phase of the half-filled…”
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Correlation functions for a two-dimensional electron system with bosonic interactions and a square Fermi surface by Fjaerestad, J. O, Sudbo, A, Luther, A

“…Phys. Rev. B 60, 13361 (1999) We calculate zero-temperature correlation functions for a model of 2D interacting electrons with short-range interactions and a…”
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Staggered Flux Phase in a Model of Strongly Correlated Electrons by Marston, J. B, Fjaerestad, J. O, Sudbo, Asle

“…Phys. Rev. Lett. 89, 056404 (2002) We present numerical evidence for the existence of a staggered flux (SF) phase in the half-filled two-leg t-U-V-J ladder,…”
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