logo
Home News Features People Documentation FAQ Download Tutorials Publications Theses Press Lecture Notes Events Contacts Forum

The Wikipedia Page of Yambo Yambo@Wiki

Fortran cafe The Fortran Cafe'

Bethe-Salpeter wine The Bethe-Salpeter-Equation (BSE) wine

A street entitled to Yambo in Rome
A bar entitled to Yambo in Rome Yambo road & bar


Yambo is a FORTRAN/C code for Many-Body calculations in solid state and molecular physics. Yambo relies on the Kohn-Sham wavefunctions generated by two DFT public codes: abinit, and PWscf. The code was originally developed in the Condensed Matter Theoretical Group of the Physics Department at the University of Rome "Tor Vergata" by Andrea Marini. Previous to its release under the GPL license, yambo was known as SELF.

Yambo is an important member of the key group of ab initio spectroscopy codes supported by the European Theoretical Spectroscopy Facility.

See features for an extensive overview or enjoy the view of the developers' faces.

If you want to know more follow the documentation links or read the Quick Guide and Frequently Asked Questions.

News

  • 12/01/2012
  • New release: Yambo 3.2.5 (rev26)

  • The Yambo team is pleased to inform you that a new release of Yambo is availablefrom the qe-forge portal and the SVN repository. This release includes several new features:

    • Possibility to link FFT different from FFTW for example MKL one see http://www.yambo-code.org/doc/compiling.php
    • Added a routine (variables_X) to handle the description strings of the response function
    • ERIM for the BSE moved in GPL
    • eval_minus_G.F. In order to do BSE calculations with fractional occupations the coupling is necessary. Before this commit, however, non-resonant calculations were possibile only by using the Time-Reversal. This condition has been removed by introducing a table to find the indexes of the -G vectors.
    • Introduced computer space unts: Kilobyte, Megabyte, Gigabyte
    • [a2Y] Support to read infos for HGH psps from a patched version of abinit.
    • [A2Y] Added support to pseudopotential projectors.
    • Added PARALLEL support to p2y. It can now run in parallel.
    • [P2Y] Added several PW-based routines to import the commutator of the non-local pseudo.
    • A new option for p2y (-c)
    • Fragmentation of db.dipoles and db.kindx.
    • ioKB_PP.F: the db kp_bb is fragmented when -S is given in the command line. Needed to overcome netcdf limitation in max # of vars (8129). Also found that for large grid calculations (though below the netcdf restrictions) are speed up by this option.
    • The logical that drives the parallel I/O was wronlgy defined. Errors in parallel I/O after call to the IO_and_Messaging_switch fixed.
    • Wrong number of energy steps COHSEX

    For more information on how to obtain the code visit the Download section.

  • April 16, 2012 to April 18, 2012
  • GW quasiparticle calculations in condensed matter physics and nanoscience
  		•  This school is organized by: Paolo Umari (Università degli Studi di Padova, Italy), Andrea Marini (University of Rome II, Italy), Angel Rubio (Universidad del País Vasco, Spain) and Feliciano Giustino (University of Oxford, United Kingdom).
    With this tutorial we want the students not only to learn the use of some of the GW codes freely accessible to the scientific community but also to be aware of the most important technical and theoretical aspects which are behind such methods. Therefore we will address several non-standard applications of the GW method like the calculation of the electronic lifetimes or total-energies. In addition the numerical procedures that define the basis of a successful GW calculation will be extensively discusses. We will dedicate specific lectures to choice of an accurate sampling of the Brillouin Zone, especially in low-dimensional systems like nano-structures that represent an important class of systems studied in the scientific community. We will also discuss the impact of the used basis (plane-waves versus localized basis) and the impact of pseudo-potentials versus all-electrons calculations.
  • 2 to 5 October, 2012
  • 17th ETSF Workshop on Electronic Excitations: Advanced Green's function methods
  • The 2012 ETSF workshop will return to the fundamentals of theoretical spectroscopy, providing the in-depth coverage of Green’s function, perturbative, and non-perturbative theories which is necessary to push the field forward. It is thanks to this type of workshop that students receive solid and complete foundations in many-body and excited-state theory, and that experts have the time and opportunity to foster cutting-edge collaborations. ETSF 2012 will address many-body perturbation theory (GW, BSE), time-dependent density functional theory (TDDFT), quantum chemical methods and quantum transport (equilibrium and non-equilibrium). Experts both from within and outside the ETSF will be convened, and sessions will be followed by round-table format discussions, which have proven popular in past editions, and maximize exchange and collaboration.
  • 18 -29 June 2012 (Les Houches - France)
  • Les Houches school in computational physics: ab initio simulations in condensed matter
  		•  This 10 days school is intended to offer a large panorama of the techniques used in the condensed matter ab initio simulation community. Covering the basics formalisms (DFT, many-body-perturbation-theory, etc.) and their applications (molecular dynamics, vibrational, electronic, optical, or transport properties), formal lectures will be completed by hands-on computer sessions on well distributed packages (including Yambo).
    For more information: Ècole de Physique des Houches.
  • 3 -12 January 2012 (Benasque - Spain)
  • Time-Dependent Density-Functional Theory: Prospects and Applications 5th International Workshop and School
  • The school will be attended by a maximum of around 40 students, and will last 9 days, with theoretical sessions in the mornings and practical (tutorial) sessions in the evenings. The school will start Wednesday January 4th in the morning and will end Thursday January 12th in the evening. The theoretical sessions will consist of four 45m lectures. The practical sessions will last for 3 hours and a computer will be allocated for each two students. This will allow the students to have some time every day for studying and talking to the teachers. Basic knowledge on ground state DFT calculations is required. Yambo hands-on sessions will be held during the school.
    For more information: Benasque 2012.
  • 5 – 16 September 2011 (Santo Andre' - Brazil)
  • São Paulo ICTP/TWAS Advanced School on Computational Materials Science for Energy and Environmental Applications
  • The Abdus Salam International Centre for Theoretical Physics is organizing in collaboration with the Fundação de Amparo à Pesquisa do Estado de São Paulo, Brazil (FAPESP), the Universidade Federal do ABC (UFABC), the CNR-IOM Democritos Simulation Center, Trieste, and the Academy of Sciences for the Developing World (TWAS) an Advanced School on Computational Materials Science for Energy and Environmental Applications to be held in Santo André, Brazil from 5 to 16 September 2011.
    The School will include a series of advanced talks covering the latest developments as well as a series of hands-on tutorials based on public license computer codes, high-performance computing and classical molecular dynamics and Monte Carlo codes.

    Yambo has been invited to prepare a lecture and an hands-on session for the school.

    Applicants from all countries that are members of the United Nations, UNESCO or IAEA may attend. As the Workshop will be conducted in English, participants should have an adequate working knowledge of this language. Limited funds are available for participants who are not more than 45 years old. Such support is available only to those ttending the entire activity. There is no registration fee.

    HOW TO APPLY FOR PARTICIPATION
    The Online Application can be accessed at the activity website.
    Secretariat: Ms. Rosa del Rio (smr 2277),the Abdus Salam International Centre for Theoretical Physics
    Strada Costiera 11 - 34151 Trieste, Italy
    Telephone: +39-040-2240396 - Telefax: +39-040-22407396
    E-mail:smr2277 at ictp.it
    Application DEADLINES:
    19 June 2011 (if requiring Visa)
    or 15 July 2011 (if not requiring Visa)
  • 23/05/2011
  • New release: Yambo 3.2.4 (rev17)

  • The Yambo team is pleased to inform you that a new release of Yambo is availablefrom the qe-forge portal and the SVN repository. This release includes several new features:

    • Frequency dependent correction to the LRC TDDT kernel. By S. Botti (Phys. Rev. B 72, 125203 (2005))
    • On-the-fly database to RESTART interupted GW calculations
    • minor bugs corrections and improved configuration scripts

    For more information on how to obtain the code visit the Download section.

  • 18/5/2011
  • 16th ESFT Workshop on Electronic Excitations: registration open
  • The registration for the 16th ETSF Workshop on Electronic Excitations is now open at http://workshop.etsf.eu.
    The workshop will be held in Turin from 27 to 30 of September and will point to a stronger and deeper exchange and dialogue with the community of experimentalists, besides addressing, as usual, recent methodological advances e.g. in many-body perturbation theory (GW, BSE), time-dependent density functional theory, quantum chemical methods or quantum transport.
    Each section of the workshop will be dedicated to a kind of spectroscopy and introduced by invited talks from theory and experiment. Abstracts will be considered for contributed oral presentations in the appropriate sessions.
    Deadline for registration, payment and abstract submission is on the 30th of June. You can find all practical information at the conference website: http://workshop.etsf.eu.
  • 05/5/2011
  • PostDoc Position
  		•  Post-Doc Position at Institut Néel, CNRS, Grenoble, France
    in the "Theory and Numerical Simulation of Electronic Properties" group
    Subject: "Ultrafast and non-linear phenomena at the nano-scale"
    Applications are invited for a 1-year postdoctoral position at Institut Néel, in Grenoble, France, to start by January the 1st 2012.

    The main role of this position is study optical properties of nanostructure beyond the linear response regime. The goal of this project is to combine out of equilibrium many body theory with density functional theory, in such a way to create a predictive tools to analise and predict non-linear optics and out-equilibrium phenomenas.

    The project is funded by SMINGUE-FMN.
    The successful applicant will have a strong background in material science or solid state chemistry and physics. Experience in ab-initio calculations and knowledge of Green's functions methods would be advantageous.
    Applicants should have a Ph.D. in a relevant area of condensed matter physics or materials science.
    The closing date for applications is 30 October 2011.


    For further details and to apply, please contact: Claudio ATTACCALITE
    Email: claudio.attaccalite at cnrs email = grenoble.cnrs.fr
    Tel +33-4-76887460
    http://www.attaccalite.altervista.org/
  • 18/4/2011
  • 100 pubblications with YAMBO!!
  		•  The Yambo team is pleased to inform you that this month we reached the number of 100 articles made by use the Yambo code. We acknowledge all users and developers, and people helped us to make grow this project.
  • 06/4/2011
  • European Theoretical Spectroscopy Facility: software survey 2011
  • At the request of one important funding sources, a user survey is organized in the context of the European Theoretical Spectroscopy Facility. This survey targets several first-principles applications, forming the so-called "ETSF software suite", that includes : ABINIT, APE, DP, Elk, Exc, Exciting,FHI98PP, Octopus, V_Sim, YAMBO, see also the ETSF pages: ETSF codes and ETSF software repository. Your opinion about this service is valuable. We invite all the YAMBO users to spend two minutes (at most) of their time to fill the short form at http://www.etsf.eu/node/363, before April 20.
More news here