Bose-glass to Superfluid transition in the three-dimensional Bose-Hubbard Model

We present a Monte Carlo study of the Bose-glass to superfluid transition in the three-dimensional Bose-Hubbard model. Simulations are performed on the classical (3 + 1) dimensional link-current representation using the geometrical worm algorithm. Finite-size scaling analysis (on lattices as large as 16x16x16x512 sites) of the superfluid stiffness and the compressibility is consistent with a value of the dynamical critical exponent z = 3, in agreement with existing scaling and renormalization group arguments that z = d. We find also a value of $\nu = 0.70(12)$ for the correlation length exponent, satisfying the relation $\nu >= 2/d$. However, a detailed study of the correlation functions, C(r, tau), at the quantum critical point are not consistent with this value of z. We speculate that this discrepancy could be due to the fact that the correlation functions have not reached their true asymptotic behavior because of the relatively small spatial extent of the lattices used in the present study.Comment: 9 pages, 8 figures, submitted to PR

A List of Plants Collected in Lee County, Florida

The plants included in the following list were collected at several points in Lee County, Florida, in July and August, 1900. My headquarters were at Myers, on the Caloosahatchee River, at which place most of the numbers were collected. Collections were made also at Alva, about twenty-five miles up the river, at Punta Rassa and Sanibel, at the mouth of the river, and at Marco, an island a considerable distance down the coast. A few plants were collected at Everglade, at the southwest corner of the county. Of all the plants in proper condition and in sufficient abundance, ten sets were prepared. Full sets contain 500 forms, though the total numbers are 549. Several species were obtained which are not represented in the sets

The Type Species of Danthonia

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Alien Registration- Hitchcock, William S. (Chapman, Aroostook County)

https://digitalmaine.com/alien_docs/26308/thumbnail.jp

Manual of the Grasses of the United States

Introduction 1 Uses of grasses 1 Distribution of grasses 5 Morphology of grasses 6 Classification of grasses 10 Nomenclature 12 Common names 14 Scope of the manual 14 Gramineae (Poaceae), the grass family 15 Descriptions of the subfamilies and keys to the tribes 16 Subfamily 1. Festucoideae 16 Subfamily 2. Panicoideae 17 Descriptions of the tribes and keys to the genera 17 Tribe 1. Bambuseae 17 Tribe 2. Festuceae 17 Tribe 3. Hordeae 20 Tribe 4. Aveneae 21 Tribe 5. Agrostideae 22 Tribe 6. Zovsieae 24 Tribe 7. Chlorideae 24 Tribe 8. Phalarideae. 25 Tribe 9. Oryzeae 25 Tribe 10. Zizanieae 26 Tribe 11. Melinideae 26 Tribe 12. Paniceae 26 Tribe 13. Andropogoneae 27 Tribe 14. Tripsaceae 29 Descriptions of genera and species 29 Tribe 1. Bambuseae 29 Tribe 2. Festuceae 31 Tribe 3. Hordeae 229 Tribe 4. Aveneae 275 Tribe 5. Agrostideae 306 Tribe 6. Zoysieae 462 Tribe 7. Chlorideae 469 TribeS. Phalarideae 526 Tribe 9. Oryzeae 535 Tribe 10. Zizanieae 540 Tribe 11. Melinideae 546 Tribe 12. Paniceae 549 Tribe 13. Andropogoneae 715 Tribe 14. Tripsaceae 764 Synonymy 772 Unidentified names 979 Persons for whom grasses have been named 982 Glossary 987 Additions and corrections 993 Index 99