In this new work we study luminescence in monolayer hexagonal boron nitride (m-hBN) using a new ab-initio approach that takes into account the effects of atomic vibrations on the luminescence spectra. We construct the dynamical exciton-phonon self-energy, then use it to perturbatively correct the optical response functions and test this approach on bulk hBN as… Read More
We are happy to announce the new 2022 school on Many-Body methods and simulations with the Yambo code.The school will be held at ICTP in Trieste (Italy), it will start the 4th April 20 end 8th April. More information can be found here:http://indico.ictp.it/event/9780/overview Applications will open soon.
The Yambo youtube channel is online, there you can find all lectures, tutorials and seminars given by the Yambo developers. Subscribe to the channel to not miss any of our videos.
The Yambo Team is pleased to announce the: Virtual school on “Electronic excitations in solids and nanostructures using the Yambo code” The MaX/CECAM virtual school will last four days and will be held on April 8, 9 (week 1) and April 15, 16 (week 2) 2021 using the online platform Zoom. The school aims to introduce… Read More
This year the Yambo Developers’ meeting will be online. In the morning of Friday 4, 11 and 18 December. It will be the occasion to discuss new developments and recent achievement with the Yambo code. Topics will range from: accelerating calculations in 2D systems, to Yambo-Aiida interface, validation of the code, robots, python postprocessing etc….. Read More
The “Computational School on Electronic Excitations in Novel Materials Using the Yambo Code” school at the ICTP has just ended. In this school we presented an introduction to many-body theory, a new version of the code that include all the non-linear response part. The new tutorials that are available in the wiki webpage. Moreover all… Read More
The Computational School on Electronic Excitations in Novel Materials Using the Yambo Code, introduces participants to post-DFT simulations, in particular many-body perturbation theory (MBPT) approaches and provide training in the calculation of electronic and optical properties of materials. The program will offer theoretical and technical lectures, as well as dedicated hands-on sessions where the students… Read More
Yambo is an open source project aimed at studying excited state properties of condensed matter systems from first principles using many-body methods. As input, yambo requires ground state electronic structure data as computed by density functional theory codes such as Quantum-Espresso and Abinit.Yambo’s capabilities include the calculation of linear response quantities (both independent-particle and including… Read More
Here I show how to calculate GW correction for a generic k-point not included in the original grid used to perform a GW calculations using Yambo 4.2. This method allows to obtain the GW correction without the need of recalculate the full dielectric constant used in the initial calculation. As example I will take 2-dimensional… Read More
Convergence of dielectric constant with respect the number of k-points can be very slow in many systems. For this reason in Yambo it is implemented a double-grid technique that speeds up convergence versus k-points with a computational cost comparable to the standard calculations. The method is described in the paper: Speeding up the solution of… Read More