12 resultados para Hubbard, Charles Wesley, 1810-1903.
em Boston University Digital Common
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Digitized from a letter in the Drew University Methodist Collection. 1 Item (2 p.); 17 x 20 cm
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Digitized from a letter in the Drew University Methodist Collection. 1 item (4 p.); 19.5 x 32 cm.
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Digitized from a letter in the Drew University Methodist Collection. 1 Item (4 p.); 20.5 x 33 cm.
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http://www.archive.org/details/missionaryheroes00unknuoft
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http://www.archive.org/details/amongindiansofal00repliala
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http://www.archive.org/details/lifeoffatherdesm00laverich
Forty years among the Indians ; a descriptive history of the long and busy life of Jeremiah Hubbard.
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http://www.archive.org/details/fortyyearsamongi00hubbrich
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http://anglicanhistory.org/bios/pollock/ View document online
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http://www.archive.org/details/anamericanmissio00judguoft
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http://www.archive.org/details/johnwesleytheman00pikeuoft
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http://www.archive.org/details/historyofchristi003076mbp
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We investigate numerically the ground state phase diagram of the one-dimensional extended Hubbard model, including an on--site interaction U and a nearest--neighbor interaction V. We focus on the ground state phases of the model in the V >> U region, where previous studies have suggested the possibility of dominant superconducting pairing fluctuations before the system phase separates at a critical value V=V_PS. Using quantum Monte Carlo methods on lattices much larger than in previous Lanczos diagonalization studies, we determine the boundary of phase separation, the Luttinger Liquid correlation exponent K_rho, and other correlation functions in this region. We find that phase separation occurs for V significantly smaller than previously reported. In addition, for negative U, we find that a uniform state re-enters from phase separation as the electron density is increased towards half filling. For V < V_PS, our results show that superconducting fluctuations are not dominant. The system behaves asymptotically as a Luttinger Liquid with K_rho < 1, but we also find strong low-energy (but gapped) charge-density fluctuations at a momentum not expected for a standard Luttinger Liquid.