IPM Calendar 
Saturday 30 August 2025   Today  
Events for day: Wednesday 13 August 2025    
           11:00 - 12:00     Wednesday Weekly Seminar - Hybrid Format
Higher harmonic RF cavity for the Iranian Light Source Facility's storage ring

School
PARTICLES AND ACCELERATORS

Abstract:

Higher harmonic cavities are widely used in low-emittance and high-current synchrotron storage rings to increase the stored beam's lifetime and vanish the coupled bunch instabilities. These parameters have an essential effect on the quality of synchrotron radiation and the machine's stability. Higher harmonic cavities of the Iranian light source facility are passive, capacitive-loaded structures designed to operate at 300 MHz. These cavities can operate in the beam current range of 50 to 400 mA. This presentation comprehensively discusses analytical calculations and simulations of beam dynamics, electromagnetic, therm ...

           14:00 - 15:00     QPM Weekly Seminar (Hybrid Format)
Optimal coherent control of quantum dynamics: process-based approach

School
QUANTUM PHYSICS AND MATTER

Entanglement and quantum coherence have pivotal roles in the recent era of quantum technology. However, these unique quantum features are very fragile to inevitable system-environment interaction and decay very fast. Hence, there has been a long-standing debate on finding the procedures to diminish or ideally wash out such deleterious effects. Over the years, the many different approaches have been developed for this purpose, from quantum feedback control to optimal control theory. At the first part of the talk, we establish our general scheme, referred to as process-based optimal control, to control optimally the destructive effects of envir ...