210 citations · 467 across the 18 of their papers we have counts for
18 papers
Structure-preserving techniques in accelerator physics
Dan T. Abell, Alex J. Dragt
To a very good approximation, particularly for hadron machines, charged-particle trajectories in accelerators obey Hamiltonian mechanics. During routine storage times of eight hour…
Convergence of Taylor Transfer Map for Duffing Equation
Dobrin Kaltchev, Alex Dragt
According to a theorem of Poincare, the solutions to differential equations are analytic functions of (and therefore have Taylor expansions in) the initial conditions and various p…
Atoms Talking to SQUIDs
J. E. Hoffman, J. A. Grover, Z. Kim +10
We present a scheme to couple trapped Rb atoms to a superconducting flux qubit through a magnetic dipole transition. We plan to trap atoms on the evanescent wave outside an…
Exploring Minimal Scenarios to Produce Transversely Bright Electron Beams Using the Eigen-Emittance Concept
Leanne D. Duffy, Kip A. Bishofberger, Bruce C. Carlsten +5
Next generation hard X-ray free electron lasers require electron beams with low transverse emittance. One proposal to achieve these low emittances is to exploit the eigen-emittance…
Poincare Analyticity and the Complete Variational Equations
Dobrin Kaltchev, Alex Dragt
According to a theorem of Poincare, the solutions to differential equations are analytic functions of (and therefore have Taylor expansions in) the initial conditions and various p…
Controlling Electron-Beam Emittance Partitioning for Future X-Ray Light Sources
Nikolai Yampolsky, Bruce Carlsten, Robert Ryne +3
Motivated by the emittance requirements for future light sources, we show how longitudinal-transverse correlations can be introduced to create beams with large emittance asymmetry.…