The Poisson bracket in L_infty formulation of field theory is computed via the Peierls formula from the symplectic structure, illustrated in p-adic string theory with a homological algebra interpretation of the inverse relation.
Secondary Calculus and the Covariant Phase Space
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abstract
The covariant phase space of a Lagrangian field theory is the solution space of the associated Euler-Lagrange equations. It is, in principle, a nice environment for covariant quantization of a Lagrangian field theory. Indeed, it is manifestly covariant and possesses a canonical (functional) "presymplectic structure" w (as first noticed by Zuckerman in 1986) whose degeneracy (functional) distribution is naturally interpreted as the Lie algebra of gauge transformations. We propose a fully rigorous approach to the covariant phase space in the framework of secondary calculus. In particular we describe the degeneracy distribution of w. As a byproduct we rederive the existence of a Lie bracket among gauge invariant functions on the covariant phase space.
fields
hep-th 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
A formula for conserved charges expressed solely via L_infinity algebra data for arbitrary Lagrangian theories, shown to recover the Brown-York surface charge in GR.
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Poisson bracket and $L_\infty$ algebras
The Poisson bracket in L_infty formulation of field theory is computed via the Peierls formula from the symplectic structure, illustrated in p-adic string theory with a homological algebra interpretation of the inverse relation.
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Conserved charges and $L_\infty$ algebras
A formula for conserved charges expressed solely via L_infinity algebra data for arbitrary Lagrangian theories, shown to recover the Brown-York surface charge in GR.