Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Grassmann integral"'
Autor:
Kashima, Yohei
Publikováno v:
Journal of Mathematical Sciences The University of Tokyo. 28(3):399-556
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::f5902f927fa73907f31eb9ff7eccb947
https://repository.dl.itc.u-tokyo.ac.jp/records/2005796
https://repository.dl.itc.u-tokyo.ac.jp/records/2005796
Autor:
Kashima, Yohei
Publikováno v:
Journal of Mathematical Sciences The University of Tokyo. 28(2):181-398
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::76775b7b520459c4b7bfacdcab121e40
https://repository.dl.itc.u-tokyo.ac.jp/records/2005795
https://repository.dl.itc.u-tokyo.ac.jp/records/2005795
Akademický článek
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Autor:
Ryohei Kobayashi
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-26 (2019)
Journal of High Energy Physics
Journal of High Energy Physics
We discuss a recipe to produce a lattice construction of fermionic phases of matter on unoriented manifolds. This is performed by extending the construction of spin TQFT via the Grassmann integral proposed by Gaiotto and Kapustin, to the unoriented p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b22c5fe116d49e4a9c98e7e83c8da42d
https://doaj.org/article/366d0b5768f6490996193931d712270a
https://doaj.org/article/366d0b5768f6490996193931d712270a
Publikováno v:
Physics Letters B. 725:175-179
We present a new formula to calculate matrix elements of a general unitary operator with respect to Hartree–Fock–Bogoliubov states allowing multiple quasi-particle excitations. The Balian–Brezin decomposition of the unitary operator [R. Balian,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::832a4170bf97c47e7dd53dff350d4edd
https://doi.org/10.1016/j.physletb.2013.07.005
https://doi.org/10.1016/j.physletb.2013.07.005
Autor:
N. Read, Jérôme Dubail
Publikováno v:
Physical Review B. 92
Trial wavefunctions that can be represented by summing over locally-coupled degrees of freedom are called tensor network states (TNSs); they have seemed difficult to construct for two-dimensional topological phases that possess protected gapless edge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40ba5d6ba2ffd2a8b853a83c079b43cd
https://doi.org/10.1103/physrevb.92.205307
https://doi.org/10.1103/physrevb.92.205307
Autor:
K. Scharnhorst
Publikováno v:
Journal of Mathematical Physics. 44:5415-5449
The present study introduces and investigates a new type of equation which is called Grassmann integral equation in analogy to integral equations studied in real analysis. A Grassmann integral equation is an equation which involves Grassmann integrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e238fa469733dd30d3f0e9578c43dfc
https://doi.org/10.1063/1.1612896
https://doi.org/10.1063/1.1612896
Publikováno v:
Bach, V, Knörr, H K & Menge, E 2015, ' Representability Conditions by Grassmann Integration ', Advances in Theoretical and Mathematical Physics, vol. 19, no. 6, pp. 1141–1182 . https://doi.org/10.4310/ATMP.2015.v19.n6.a1
Representability conditions on the one- and two-particle density matrix for fermion systems are formulated by means of Grassmann integrals. A positivity condition for a certain kind of Grassmann integral is established which, in turn, induces the wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af5bc689c2b936b1146071e7888686d1
Given a hypergraph G, we introduce a Grassmann algebra over the vertex set, and show that a class of Grassmann integrals permits an expansion in terms of spanning hyperforests. Special cases provide the generating functions for rooted and unrooted sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0d1042b523c8dbf745475ac91ec41b5
http://arxiv.org/abs/0706.1509
http://arxiv.org/abs/0706.1509
Autor:
Tomohiko Sakaguchi, Taro Kashiwa
It is shown that a simple model of 2N-Grassmann variables with a four-body coupling involves caustics when the integral has been converted to a bosonic form with the aid of the auxiliary field. Approximation is then performed to assure validity of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::811381cd974a15fa368b7819dae312f5