3 Result(s)

Article

Erratum to: Evolution Law of the Optical Field of Degenerate Parametric Amplifier in Dissipative Channel

Feng Chen, Bao-long Fang, Rui He… in International Journal of Theoretical Physi… (2014)

Article

A Deduction of the Hellmann-Feynman Theorem

In this paper we present a deduction of the Hellmann-Feynman (HF) theorem for the lowest eigenenergy E0λ\(E_{0}\left (\lambda \right ) \) of a Hamiltonian Hλ\( H\left (\lambda \right ) \), that is : its second-order ...

Chen Feng, Cheng Wei, Bao-long Fang… in International Journal of Theoretical Physi… (2020)

Article

A Mathematical Analysis of Casimir Interactions I: The Scalar Field

Starting from the construction of the free quantum scalar field of mass \(m\ge 0\) m ...

Yan-Long Fang, Alexander Strohmaier in Annales Henri Poincaré (2022)