229 citations · 433 across the 20 of their papers we have counts for
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Quantum mechanical path integrals in the first quantised approach to quantum field theory
James P. Edwards, Christian Schubert
Perturbative quantum field theory usually uses second quantisation and Feynman diagrams. The worldline formalism provides an alternative approach based on first quantised particle…
Compton-like scattering of a scalar particle with N photons and one graviton
Naser Ahmadiniaz, Filippo Maria Balli, Olindo Corradini +2
Tree-level scattering amplitudes for a scalar particle coupled to an arbitrary number N of photons and a single graviton are computed. We employ the worldline formalism as the main…
AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space
Yousef Abou El-Neaj, Cristiano Alpigiani, Sana Amairi-Pyka +129
We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range bet…
Dihedral Invariant Polynomials in the effective Lagrangian of QED
Idrish Huet, Michel Rausch de Traubenberg, Christian Schubert
We present a new group-theoretical technique to calculate weak field expansions for some Feynman diagrams using invariant polynomials of the dihedral group. In particular we show r…
Applications of the worldline Monte Carlo formalism in quantum mechanics
James P. Edwards, Urs Gerber, Christian Schubert +3
In recent years efficient algorithms have been developed for the numerical computation of relativistic single-particle path integrals in quantum field theory. Here, we adapt this "…
Optomechanical resonator-enhanced atom interferometry
L. L. Richardson, D. Nath, A. Rajagopalan +16
Matter-wave interferometry and spectroscopy of optomechanical resonators offer complementary advantages. Interferometry with cold atoms is employed for accurate and long-term stabl…