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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

  • 23/04/2012
  • Pictures and Tutorial files of the CECAM tutorial organized by A. Marini, F. Giustino, P. Umari and A. Rubio in Lousanne added in the events page
  • 22/03/2012
  • Pictures of the Yambo schools in Benasque (Spain) and San Paolo (Brasil) added in the events page
  • 20/02/2012
  • Open position for Postdoctoral researcher within the European Project PRACE-2IP
  		•  The PRACE (Partnership for advanced computing in Europe)-2IP project aims to create a persistent pan-European HPC service providing world-class systems for world-class science. The researcher will contribute to the task WP8 of the PRACE-2IP project: “improving the petascale performance of scientific codes in the fields of Condensed Matter Physics”.
    In the specific the researcher will work at the scientific codes Yambo and Octopus.
    The researcher will be integrated in the Condensed Matter group of the Center for Computational Physics of the University of Coimbra lead by Prof. Fernando Nogueira and collaborate with the developers of the Yambo and Octopus scientific codes.
    Candidates should have experience in electronic structure ab-initio simulations, advanced numerical methods, and programming (preferably in Fortran95 and C).
    The scholarship will amount to 1495 euros/month and will last 12 months.
    Applications should contains a letter of application, a curriculum vitae and other elements considered relevant such as publications (with a maximum of 3) The deadline for applications is on the 02/03/2012. Results of the evaluation will be communicated on 16/04/2012 at the latest.
    Applications and inquires should be directed by e-mail to Prof. Fernando Nogueira. (fnog at uc_mail, uc_mail=uc.pt)
  • 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)
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