Bihamiltonian approach to the gauge models: closed string model

• Дата: 2001
• Автор: Gershun, V.D.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2001
• Назва видання: Вопросы атомной науки и техники
• Теми: Quantum field theory
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/79425
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Bihamiltonian approach to the gauge models: closed string model / V.D. Gershun // Вопросы атомной науки и техники. — 2001. — № 6. — С. 65-70. — Бібліогр.: 9 назв. — англ.

The closed string model in the background gravity field and the antisymmetric B-field is considered as the bihamiltonian system in assumption that string model is the integrable model for particular kind of the background fields. It is shown that bihamiltonity is origin of two types of the T-duality of the closed string models. The dual nonlocal Poisson brackets, depending of the background fields and of their derivatives, are obtained. The integrability condition is formulated as the compatibility of the bihamoltonity condition and the Jacobi identity of the dual Poisson bracket. It is shown, that the dual brackets and dual hamiltonians can be obtained from the canonical (PB) and from the initial hamiltonian by imposing of the second kind constraints on the initial dynamical system, on the closed string model in the constant background fields, as example. The closed string model in the constant background fields is considered without constraints, with the second kind constraints and with first kind constraints as the B-chiral string. The two particles discrete closed string model is considered as two relativistic particle system to show the difference between the Gupta-Bleuler method of the quantization with the first kind constraints and the quantization of the Dirac bracket with the second kind constraints.