Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Robert C. Helling"'
Publikováno v:
Physics Letters B. 510:311-319
We discuss some issues related to D(2p)-D0 branes with background magnetic fluxes respectively, in a T-dual picture, Dp-Dp branes at angles. In particular, we describe the nature of the supersymmetric bound states appearing after tachyon condensation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e26dafc22206a4400b7b82941317f61
https://doi.org/10.1016/s0370-2693(01)00593-7
https://doi.org/10.1016/s0370-2693(01)00593-7
Autor:
Robert C. Helling
Publikováno v:
Fortschritte der Physik. 48:1229-1310
In dieser Arbeit stellen wir verschiedene Tests der (M)atrixtheorie-Vermutung vor. Die (M)atrixtheorievermutung besagt, dass die Dynamik von M-Theorie, der Urtheorie, die alle bekannten Stringtheorien und auch elfdimensionale Supergravitation als bes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3138f4c7694aa5c16bef268a2d5b29a
https://doi.org/10.1002/1521-3978(200012)48:12<1229::aid-prop1229>3.0.co
https://doi.org/10.1002/1521-3978(200012)48:12<1229::aid-prop1229>3.0.co
Autor:
Wolfgang Spitzer, Robert C. Helling
We show that the entanglement entropy associated to a region grows faster than the area of its boundary surface. This is done by proving a special case of a conjecture due to Widom that yields a surprisingly simple expression for the leading behaviou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5489133e69f790fa05fe5bfaaadd06e5
We prove a special case of a conjecture in asymptotic analysis by Harold Widom. More precisely, we establish the leading and next-to-leading term of a semi-classical expansion of the trace of the square of certain integral operators on the Hilbert sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7601b0b257c9d5e5afeefaeee10361c9
http://arxiv.org/abs/0906.4946
http://arxiv.org/abs/0906.4946
Publikováno v:
AIP Conference Proceedings.
The importance of manifest diffeomorphism invariance is often cited as a major strength of the loop approach to the quantization of gravity. We study this in a simple example: The world‐sheet theory of the bosonic string. The conventional treatment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f6c615031179d7e2627eaeefb7b145
https://doi.org/10.1063/1.3284378
https://doi.org/10.1063/1.3284378
A simple algorithm which gives the multipole vectors in terms of the roots of a polynomial is given. We find that the reported alignmet of the low l multipole vectors can be summarised as an anti-alignmet of these with the dipole direction. This anti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::746b8e40246589e5a046b8fab1b85f11
We study brane recombination for supersymmetric configurations of intersecting branes in terms of the world-volume field theory. This field theory contains an impurity, corresponding to the degrees of freedom localized at the intersection. The Higgs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9db3d895b8de70ba52abc19c6d3cabba
Publikováno v:
Journal of High Energy Physics
Scopus-Elsevier
Scopus-Elsevier
We study one-loop corrections in scalar and gauge field theories on the non-commutative torus. For rational theta, Morita equivalence allows these theories to be reformulated in terms of ordinary theories on a commutative torus with twisted boundary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75ba85c92379248bcaaf4c47c3575415
http://arxiv.org/abs/hep-th/0204037
http://arxiv.org/abs/hep-th/0204037
Autor:
Ned S. Wingreen, Henry Cejtin, Jan Edler, Chao Tang, James Philbin, Allan Gottlieb, Hao Li, Robert C. Helling
Using a fast tree-searching algorithm and a Pentium cluster, we enumerated all the sequences and compact conformations (structures) for a protein folding model on a cubic lattice of size $4\times3\times3$. We used two types of amino acids -- hydropho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d785fdddd401e2b23a220272d6c236ea
http://arxiv.org/abs/cond-mat/0107554
http://arxiv.org/abs/cond-mat/0107554
Autor:
Jonathan Miller, Robert C. Helling, Chao Tang, Ned S. Wingreen, Hao Li, Régis Mélin, Chen Zeng
Publikováno v:
Journal of molecular graphicsmodelling. 19(1)
It has been noted that natural proteins adapt only a limited number of folds. Several researchers have investigated why and how nature has selected this small number of folds. Using simple models of protein folding, we demonstrate systematically that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad726651745e9a7d271450be1c7bf172
https://pubmed.ncbi.nlm.nih.gov/11381527
https://pubmed.ncbi.nlm.nih.gov/11381527