5 papers
A flat-band perspective on the boson peak in amorphous solids
Shivam Mahajan, Long-Zhou Huang, Cunyuan Jiang +4
The boson peak is a characteristic anomaly of amorphous solids broadly defined as a low-energy excess in the density of states and heat capacity compared to the textbook prediction…
Theories of the Glass Transition Based on Local Excitations
Massimo Pica Ciamarra, Jeppe C. Dyre, Edan Lerner +1
The dramatic slowdown of dynamics in supercooled liquids approaching the glass transition remains one of the central unresolved problems in condensed matter physics. We review appr…
Hybrid twinning using PBDW and DeepONet for the effective state estimation and prediction on partially known systems
Stiven Briand Massala, Ludovic Chamoin, Massimo Picca Ciamarra
The accurate estimation of the state of complex uncertain physical systems requires reconciling theoretical models, with inherent imperfections, with noisy experimental data. In th…
Particle deformability stabilizes hexatic order and suppresses crystallization
Jatin Kumar, Wu Zeng, Anshuman Pasupalak +1
We show that two-dimensional systems of deformable particles undergo a continuous liquid-hexatic transition upon compression or cooling, but no hexatic-solid transition-even at zer…
Revealing the Geometrical and Vibrational Properties of the Defects Driving the Boson Peak
Shivam Mahajan, Darryl Seow Yang Han, Cunyuan Jiang +2
In amorphous solids, the vibrational density of states shows an excess of modes over the Debye model, known as the boson peak, whose origin remains unclear. Studies suggest a link…