SEMINARIUM
Zakładów Naukowych ZN2, ZN3, ZN5
Dnia: 24.10.2025 roku (piątek)
o godzinie 10:00 w auli Instytutu
referat pt.:
Steps towards bridging the atomistic and micromagnetic lengthscales in quasi-amorphous alloys
wygłosi
Instytut Fizyki Molekularnej PAN
SEMINARIUM INSTYTUTOWE
Dnia: 27.10.2025 roku (poniedziałek)
o godzinie 13:00 w auli Instytutu
referat pt.:
Subsystem Resetting as a way of controlling phases in many-body interacting systems
wygłosi
Tata Institute of Fundamental Research, Mumbai, India, The Nordic Institute for Theoretical Physics (Nordita), Stockholm, Sweden
Stabilising unstable phases in many-body interacting systems is a longstanding challenge. In this work, we use subsystem resetting as a minimally invasive protocol to control such systems. The idea is simple: only a chosen subpart of the full system is stochastically reset to a fixed configuration, while the rest part evolves freely, and we ask what happens to some order parameter at steady state. This avoids global interventions and fine-tuning of couplings.
We have applied this protocol across a wide class of models, namely, mean-field spin models and the noisy Kuramoto oscillator system. In this talk, I will focus on the application to Kuramoto oscillators. I will demonstrate 1) how resetting a subpart can reproduce the full phase diagram of the original model for the rest of the system, and 2) Systematic manipulation of phase-transition points by adjusting the reset frequency, subsystem size, and reset configuration. These results open up a versatile framework for stabilising or suppressing targeted phases in complex interacting systems.
SEMINARIUM
Zakładów Naukowych ZN1, ZN6
Dnia: 30.10.2025 roku (czwartek)
o godzinie 09:30 w sali 227
wygłosi