Two-photon exchange interaction from the Dicke Hamiltonian under parametric modulation

Two-Photon Algebra and Integrable Hamiltonian Systems

In a recent paper [1], a systematic construction of integrable Hamiltonians with coalgebra symmetry has been proposed. Such procedure can be applied to any Poisson coalgebra (A,∆) with generators Xi, i = 1, . . . , l and Casimir element C(X1, . . . , Xl) as follows. Let us consider the N -th coproduct ∆(Xi) of the generators and the m-th order (2 ≤ m ≤ N) coproducts ∆(m)(C) of the Casimir opera...

Two-Photon Exchange in (Semi-)Inclusive DIS

In this note1 we consider effects of a Two-Photon Exchange (TPE) in inclusive DIS and semi-inclusive DIS (SIDIS). In particular, transverse single spin asymmetries are generated in inclusive DIS if more than one photon is exchanged between the lepton and the hadron. We briefly summarize the TPE in DIS in the parton model and extend our approach to SIDIS, where a new leading twist sin(2φ) contri...

Two - Photon Exchange in Electron - Deuteron Scattering

We show that multiple scattering of the electron (i.e., two-photon exchange) in electron-deuteron elastic scattering leads to a small component in the cross section, which decreases very slowly with momentum transfer, and may dominate the cross section at high momentum transfer.

Search for Exchange-Antisymmetric Two-Photon States

Recent experiments have explored the possibility of small violations of the usual relationship between spin and statistics [1–5]. Although such violations are impossible within conventional quantum field theory [6], there are motivations for considering them; see e.g. Ref. [7]. If photons do not obey Bose-Einstein (BE) statistics, there will be a non-zero probability that two photons are in an ...

Two-photon spectroscopy of trapped HD+ ions in the Lamb-Dicke regime