All day
Place: Instituto de Física, UNAM (México)
Freddy Jackson (UNAM)
"Pattern formation via parametric excitation in ultracold gases"
Abstract:
This study explores pattern formation in Bose-Einstein condensates under parametric excitation. We use variational and numerical methods to analyze how modulating trap geometry or interaction strength near the breathing mode frequency induces spatial and temporal density patterns. Prolate traps yield fringe structures, while oblate traps produce ring patterns. The onset of these patterns correlates with energy redistribution in weakly confined directions, revealing their three-dimensional nature. This work highlights the resonance-driven dynamics and provides insight into collective excitations and instabilities in quantum fluids.
Bio Profile – Freddy Jackson Poveda Cuevas:
Freddy Jackson Poveda Cuevas is a Colombian physicist with expertise in quantum thermodynamics, ultracold gases, and atomic physics. He holds a Ph.D. in Physics from the University of São Paulo, Brazil. He serves as a senior researcher at the Institute of Physics, National Autonomous University of México (UNAM), through the "Investigadores por México" program of Secretaría de Ciencia, Humanidades, Tecnología e Innovación (SECIHTI).
His research focuses on Bose-Einstein condensation, superfluidity, and the thermodynamic behavior of quantum systems, combining theoretical modeling with experimental design. He has led and collaborated on multiple funded projects, including SECIHTI and PAPIIT initiatives, and contributed to developing Latin America's first fermionic condensate.
Dr. Poveda has authored over 25 peer-reviewed publications in journals of the field. His work spans critical phenomena, density modulations, and quantum simulations in confined systems.
As an educator, he has taught more than 30 graduate and undergraduate courses. He has also supervised over 20 theses or finishing works and participated in numerous academic committees, evaluations, and doctoral candidacies.
Committed to scientific outreach, he regularly delivers seminars and public lectures, integrating physics with broader cultural and educational contexts. His interdisciplinary approach and pedagogical rigor make him a key figure in training new scientists and advancing quantum science in Latin America.
All day
Place: Instituto de Física, UNAM (México)
Freddy Jackson (UNAM)
"Pattern formation via parametric excitation in ultracold gases"
Abstract:
This study explores pattern formation in Bose-Einstein condensates under parametric excitation. We use variational and numerical methods to analyze how modulating trap geometry or interaction strength near the breathing mode frequency induces spatial and temporal density patterns. Prolate traps yield fringe structures, while oblate traps produce ring patterns. The onset of these patterns correlates with energy redistribution in weakly confined directions, revealing their three-dimensional nature. This work highlights the resonance-driven dynamics and provides insight into collective excitations and instabilities in quantum fluids.
Bio Profile – Freddy Jackson Poveda Cuevas:
Freddy Jackson Poveda Cuevas is a Colombian physicist with expertise in quantum thermodynamics, ultracold gases, and atomic physics. He holds a Ph.D. in Physics from the University of São Paulo, Brazil. He serves as a senior researcher at the Institute of Physics, National Autonomous University of México (UNAM), through the "Investigadores por México" program of Secretaría de Ciencia, Humanidades, Tecnología e Innovación (SECIHTI).
His research focuses on Bose-Einstein condensation, superfluidity, and the thermodynamic behavior of quantum systems, combining theoretical modeling with experimental design. He has led and collaborated on multiple funded projects, including SECIHTI and PAPIIT initiatives, and contributed to developing Latin America's first fermionic condensate.
Dr. Poveda has authored over 25 peer-reviewed publications in journals of the field. His work spans critical phenomena, density modulations, and quantum simulations in confined systems.
As an educator, he has taught more than 30 graduate and undergraduate courses. He has also supervised over 20 theses or finishing works and participated in numerous academic committees, evaluations, and doctoral candidacies.
Committed to scientific outreach, he regularly delivers seminars and public lectures, integrating physics with broader cultural and educational contexts. His interdisciplinary approach and pedagogical rigor make him a key figure in training new scientists and advancing quantum science in Latin America.