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Changelog

Version 3.3.0

CTHYB version 3.3.0 is a compatibility release for TRIQS version 3.3.0 including an update to the latest app4triqs skeleton. This release includes the fixes of Version 3.2.1 related to the G2 measurements (see below for details).

We thank all contributors: Thomas Hahn, Alexander Hampel, Henri Menke, Hugo U. R. Strand, Nils Wentzell

Find below an itemized list of changes in this release.

General

  • polish delta(t) diag imag warning
  • benchmark: update measure_g2 hubbard_atom_2bath scripts

doc

  • Clarify install instructions with regards to NFFT dependency

jenkins

  • Add ubuntu-intel build
  • For sanitized build use RelWithDebInfo build mode

Version 3.2.1

CTHYB version 3.2.1 is a patch release contains an important bugfix in the two-particle Green function measurement.

We thank all contributors: Hugo U. R. Strand, Nils Wentzell

Find below an itemized list of changes in this release.

General

  • Fix crucial bug in G2 measurement
  • Fix nfft_array_t to correctly handle move construction and move assignment
  • Fix compilation of G2 measurement
  • Update scripts for benchmarks measure_g2 hubbard_atom_2bath

doc

  • Correct link to ubuntu debian triqs page
  • Correct Ubuntu Version in install instructions
  • Update version in website sidebar

jenkins

  • Always build with G2 Measure ON

Version 3.2.0

CTHYB version 3.2.0 is a compatibility release for TRIQS version 3.2.0. This release fixes several application issues and introduces more accurate ways of calculating high-frequency moments of the Self-Energy and Green function from the impurity density matrix

We thank all contributors: Alexander Hampel, Azin Kazemi-Moridani, Harrison LaBollita, Dylan Simon, Nils Wentzell, weiyiguo9

Find below an itemized list of changes in this release.

General

  • Calculate high freq moments of Sigma and G from density matrix
  • Enforce hermiticity of measured density matrix (#162)
  • Add Tutorial for high freq moments of self-energy and greens function (#163)
  • Add tutorial on cthyb convergence tests (#151)
  • Use perturbation order in estimate of auto_corr_time
  • Raise test tolerance for slater.py and single_site_bethe.py after 80cbb37
  • Synchronize clang-tidy config file with app4triqs
  • Rename U_matrix -> U_matrix_slater
  • Add github actions badge
  • clang-format all source files
  • General cleanup

doc

  • Enable autodoc for reference manual
  • Don't force 'include-source' in plot directives
  • Use Markdown for Readme.md and add line breaks

fix

  • Replace numpy.complex by complex
  • Fix small error in block accessor var name
  • Fix data type of certain parameters int -> long
  • Fix 0+ and beta- symmetrization to use full Gtau statistics

Version 3.1.1

CTHYB version 3.1.1 is a patch release contains a number of bug fixes. In particular, we resolve incompatibility with recent numpy versions.

We thank all contributors: Alexander Hampel, Nils Wentzell, weiyiguo9

Find below an itemized list of changes in this release.

General

  • fix: data type of certain parameters int -> long
  • fix: failing Py_single_site_bethe test
  • Update 3.1 easybuild script with sha256 of release tarball
  • Bump version numbers from 3.1.0 to 3.1.1

Doc

  • Fix some import statements in guides

Numpy

  • np.complex is deprecated -> complex instead

Version 3.1.0

CTHYB version 3.1.0 is a compatibility release for TRIQS version 3.1.0. This release fixes several application issues and introduces an alternate Delta Interface that allows users to provide the hybridization function and the non-interacting local Hamiltonian instead of the Weiss-field.

Delta Interface

The Delta Interface allows the user to provide the hybridization function directly instead of providing G0_iw. It can be used by setting delta_interface=True when initializing the solver object. When calling the solver, the quadratic part of the local Hamiltonian must be provided with the parameter h_loc0, which is a many body operator like h_int. The Solver.G0_iw and Solver.Delta_infty objects cannot be accessed while using the Delta Interface.

We provide a more detailed description of the changes and fixes below.

General

  • Use the latest app4triqs/3.1.x skeleton
  • Switches documentation to read-the-docs theme
  • Add parameter Delta_interface that allows to provide h_loc0 and Delta_tau instead of G0_iw
  • Add delta_interface as a construction parameter to switch to alternate solver interface
  • Test Delta Interface in kanamori_py test
  • Add simple measurements for average_order and auto_corr_time based on Z (sign)
  • Adjust cthyb to changes in gf_struct object
  • Add backward compatibility layers for old gf_struct type
  • Add solver property to check if cthyb has been build with complex support
  • Allow to set small off diagonal elements of Delta_infty to 0 (#140)
  • Fix sanitizer positive, protect division by zero in trace analysis
  • Slightly loosen internal check in impurity trace and improve error message
  • Run port_to_triqs3 script for TRIQS mesh and nda changes
  • Expose h_loc0 in both interfaces and deprecate Delta_infty
  • Run git-clang-format
  • Regenerate python bindings

jenkins

  • For OSX builds enable complex Hybridisation and Local Hamiltonian and adjust build names

doc

  • Adding multiplet_analysis_notebook guide to documentation
  • Add missing image file logo_flatiron.png

cmake

  • Avoid policy warning for CMP0115

gh-actions

  • Install nfft from wentzell/triqs/nfft
  • Fix brew nfft install instructions

We thank all contributors: Alexander Hampel, Jonathan Karp, Dylan Simon, Nils Wentzell

Version 3.0.0

CTHYB version 3.0.0 is a major release that

  • is compatible with TRIQS version 3.0.x
  • introduces compatibility with Python 3 (Python 2 is no longer supported)
  • brings new documentation for measuring the impurity density matrix in cthyb
  • fundamental Green function properties are now enforced to increase accuracy

Fundamental Green Function Symmetries

We now enforce the fundamental Green function properties G[iw](i,j) = G[-iw](j,i)* and G[tau](i,j) = G[tau](j,i)* for both the solver-input S.G0_iw as well as the solver outputs S.G_tau and S.G_iw. The use of this symmetry is enhancing the effective accuracy of the solver. If the input violates the relation a warning will be issued and the input will be automatically symmetrized. The output will always be symmetrized in the collect_results section of the G_tau measurement.

Dependency Management

We are managing the interdependencies of the various library components of triqs now using cmake. Per default cmake will pull those dependencies from their corresponding GitHub repositories, build them, and install these components together with TRIQS, unless they are found in your system. This behavior can be altered using the additional cmake options

  • -DBuild_Deps="Always" - Always build dependencies, do not try to find them
  • -DBuild_Deps="Never" - Never build dependencies, but find them instead

during the configuration step. See also the TRIQS documentation for more detailed instructions.

Other Changes

  • Run port_to_triqs3 script
  • Port py files to python3
  • Update triqs python module name: pytriqs -> triqs
  • fixes issue #93 by passing correctly imag_threshold when checking Hloc (#129)
  • Fix comparison in atomic_observables test for python3
  • Use std::variant over triqs/utility/variant.hpp
  • Documentation build no longer requires triqs to be build with doc
  • Bump Version number of app4triqs and triqs to 3.0.0
  • Add a section on the Anaconda package to the install page
  • h5: Adjust to hdf5 header and module changes in triqs

Thanks to all commit-contributors (in alphabetical order): Philipp Dumitrescu, Alexander Hampel, Nils Wentzell

Version 2.2.1

CTHYB Version 2.2.1 makes the application available through the Anaconda package manager. We adjust the install pages of the documentation accordingly. It further introduces two minor fixes. We provide a more detailed description of the changes below.

doc

  • Add a section on the Anaconda package to the install page

General

  • Correct error in solve params deprecation warning Fix #124
  • Remove redundant inclusion of triqs/utility/serialization.hpp

Version 2.2.0

CTHYB version 2.2.0 is a compatibility release for TRIQS version 2.2.0. It provides improvements to the documentation and fixes various compiler warnings.

We provide a more detailed description of the changes below.

cmake

  • Install additional triqs namespace headers provided by cthyb
  • Synchronize project structure with app4triqs
  • Bump cthyb version to 2.2.0 and adjust triqs version requirement
  • Minor adjustments in cmake to restore cmake version 3.0.2 compatibility

doc

  • Update install instructions for nfft
  • Install svg files used by tutorials
  • Add tutorial for pert order histogram
  • Add tutoria for dynamic suscept
  • Fix import statements -> static observables (import from atom_diag)

General

  • Use std::vector over triqs::arrays::vector for density containers
  • Fix various compiler warnings and deprecation messages
  • Consistently use std:: namespace instead of std::c14::
  • Remove remainders of separate cpp2py install from modulefile
  • Bump cmake version requirement to 3.0.2
  • Port cthyb after latest changes to triqs mpi/itertools functionality
  • Add measurement O_tau_min_ins

h5

  • Store additional member variables when storing solver object, FIX #115

packaging

  • update package name to triqs_cthyb and conflict with cthyb

Version 2.1.0

Contributors

  • Hugo U. R. Strand, new functionality, two-particle Green's function sampling in imaginary time and frequency, and sampling by operator insertion.
  • Igor Krivenko, occupation number constraints in the trace, two-particle Green's function sampling with NFFT and mixed basis frequency*(legendre)^2.
  • Lewin Boehnke, (indirect contribution) through the first mixed basis sampling implementation in an early version of cthyb.
  • Nils Wentzell, nfft_buf_t, cmake, and install.

Testers

Manuel Zingl, Daniel Mantadakis, and Jonathan Karp.

Changes in installation and cmake files

  • Headers are now installed to ${CMAKE_INSTALL_PREFIX}/include/triqs_cthyb.
  • The c++ namespace is now a single namespace called triqs_cthyb.
  • The python module is named triqs_cthyb.

Solver Interface

  • The type of gf_struct has changed from a dict to a list of pairs

    { 'up' : [0, 1], 'dn' : [0, 1] } --> [ ('up', [0,1]), ('dn', [0,1]) ]

  • measure_g_l has been renamed to measure_G_l

  • measure_g_tau has been renamed to measure_G_tau

  • Truncation of the local Hilbert space in total density using loc_n_min and loc_n_max

  • Two particle Greens function sampling with a whole set of measurements see measure_G2_*

  • Two particle susceptibilities sampling by insertion using measure_O_tau

  • Tunable parameters for the determinant regularization see det_* parameters

  • Solver object can be stored and loaded directly to/from h5 archive

  • Tail fit functionality is rewritten for the Triqs 2.0 change in how tail coefficients are handled

Changes in behavior

  • move_double is now enabled by default.

  • The sampled single particle Greens function is modified when tail fitting is enabled.

  • The gf_struct should be a list of list of block index and a list of target space indices, e.g.

    gf_struct = [['up', [0, 1]], ['down', [0, 1]]].

    When passing a dictionary a warning is printed.

Dependencies

  • The NFFT3 library by default, to compile without the library use the cmake flag -DMeasureG2=OFF.