Concept
Partition function (statistical mechanics)
Related publications (118)
Tensor network investigation of frustrated Ising models
In spin systems, geometrical frustration describes the impossibility of minimizing simultaneously all the interactions in a Hamiltonian, often giving rise to macroscopic ground-state degeneracies and emergent low-temperature physics. In this thesis, combin ...
EPFL2022Conformal Field Theory at the Lattice Level: Discrete Complex Analysis and Virasoro Structure
Critical statistical mechanics and Conformal Field Theory (CFT) are conjecturally connected since the seminal work of Beliavin et al. (Nucl Phys B 241(2):333-380, 1984). Both exhibit exactly solvable structures in two dimensions. A long-standing question ( ...
SPRINGER2022Tensor network investigation of the hard-square model
Frédéric Mila, Samuel Louis Nyckees
Using the corner-transfer matrix renormalization group to contract the tensor network that describes its partition function, we investigate the nature of the phase transitions of the hard-square model, one of the exactly solved models of statistical physic ...
AMER PHYSICAL SOC2022Pde-Constrained Optimization For Nuclear Mechanics
We propose an image based PDE-constrained optimisation framework to compute the dynamical quantities of a cell nucleus undergoing deformation. It allows retrieving the displacement, strain and stress at each pixel of the nuclear domain, as well as the trac ...
IEEE2022Intercalant-mediated Kitaev exchange in Ag3LiIr2O6
The recently synthesized Ag3LiIr2O6 has been proposed as a Kitaev magnet in proximity to the quantum spin liquid phase. We explore its microscopic Hamiltonian and magnetic ground state using many-body quantum chemistry methods and exact diagonalization tec ...
AMER PHYSICAL SOC2022Mass-Zero constrained dynamics and statistics for the shell model in magnetic field
In several domains of physics, including first principle simulations and classical models for polarizable systems, the minimization of an energy function with respect to a set of auxiliary variables must be performed to define the dynamics of physical degr ...
2021High Li-ion conductivity in tetragonal LGPO: A comparative first-principles study against known LISICON and LGPS phases
Nicola Marzari, Giuliana Materzanini, Aris Marcolongo, Leonid Kahle
We highlight fast Li-ion diffusion in hypothetical tetragonal Li10GeP2O12 (LGPO), as a counterpart to the well-known phases of orthorhombic (LISICON) LGPO, thio-LISICON, and tetragonal Li10GeP2S12 (LGPS). We use extended Car-Parrinello molecular dynamics i ...
AMER PHYSICAL SOC2021Equilibrium and non-equilibrium furanose selection in the ribose isomerisation network
Paolo De Los Rios, Daniel Maria Busiello, Shiling Liang, Francesco Piazza
The exclusive presence of beta -D-ribofuranose in nucleic acids is still a conundrum in prebiotic chemistry, given that pyranose species are substantially more stable at equilibrium. However, a precise characterisation of the relative furanose/pyranose fra ...
NATURE RESEARCH2021Aerosol acidity and liquid water content regulate the dry deposition of inorganic reactive nitrogen
Athanasios Nenes, Spyros Pandis
Ecosystem productivity is strongly modulated by the atmospheric deposition of inorganic reactive nitrogen (the sum of ammonium and nitrate). The individual contributions of ammonium and nitrate vary considerably over space and time, giving rise to complex ...
COPERNICUS GESELLSCHAFT MBH2021Adaptive and Robust Partition Learning for Person Retrieval With Policy Gradient
Zhen Wei, Zhiye Wang, Peixia Li
Person retrieval aims at effectively matching the pedestrian images over an extensive database given a specified identity. As extracting effective features is crucial in a high-performance retrieval system, recent significant progress was achieved by part- ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021