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5 papers · 2 filters
Time-ordering and a generalized Magnus expansion
Michel Bauer, Raphael Chetrite, Kurusch Ebrahimi-Fard +1
Both the classical time-ordering and the Magnus expansion are well-known in the context of linear initial value problems. Motivated by the noncommutativity between time-ordering an…
The Schwinger model on : Hamiltonian formulation, vacuum and anomaly
David M. A. Stuart
We present a Hamiltonian formulation of the Schwinger model on the circle in Coulomb gauge as a semi-bounded self-adjoint operator which is invariant under the modular group ${\cal…
A Note on the Analyticity of Density of States
M. Kaminaga, M. Krishna, S. Nakamura
We consider the -dimensional Anderson model, and we prove the density of states is locally analytic if the single site potential distribution is locally analytic and the disorde…
On the Hamilton-Jacobi Theory for Singular Lagrangian Systems
Manuel de León, Juan Carlos Marrero, David Martín de Diego +1
We develop a Hamilton-Jacobi theory for singular lagrangian systems using the Gotay-Nester-Hinds constraint algorithm. The procedure works even if the system has secondary constrai…
Causality and the conformal boundary of AdS in real-time holography
Alberto Enciso, Niky Kamran
We consider the holographic prescription problem in a (Lorentzian) AdS background, deriving from first principles the explicit formulas that relate the field at infinity with the f…