https://www.quanty.org/ 2026-06-14T18:24:47+00:00 https://www.quanty.org/ https://www.quanty.org/_media/wiki/dokuwiki.svg text/html 2026-06-05T21:18:51+00:00 Lukasz Plucinski (plucinsk@undisclosed.example.com) https://www.quanty.org/forum/data/2026/ylm-_and_spin-resolved_4f_photoemission_amplitudes_in_quanty?rev=1780694331&do=diff Ylm- and spin-resolved 4f photoemission amplitudes in Quanty asked by Lukasz Plucinski (2026/06/05 23:18) Dear All, I am currently exploring rare-earth 4f photoemission multiplets in Quanty, starting from Ho 4f¹⁰ → 4f⁹. After a few days of work, I have obtained a spectrum that begins to resemble the classic Ho calculation by Gerken (J. Phys. F: Met. Phys. 13, 703 (1983)). My actual goal would be Dy and perhaps Tb. text/html 2026-05-29T08:05:01+00:00 Sina Shokri (sinashokri@undisclosed.example.com) https://www.quanty.org/documentation/language_reference/objects/responsefunction/functions/calculatehybridizationfunction?rev=1780041901&do=diff CalculateHybridizationFunction ResponseFunction.CalculateHybridizationFunction(G0,Sigma) calculates the interacting impurity bath Green's function. Given a lattice with local Green's function $G_0(\omega)$ and a local self energy $\Sigma(\omega)$. The full Green's function then is $G(\omega) = G_0(\omega-\Sigma(\omega))$$$G_{Bath} = \frac{1}{G_0(\omega-\Sigma(\omega))^{-1} + \Sigma(\omega)}$$$G_0$$\Sigma$$G_{Bath}(\omega)$$G_{Bath}(\omega)$$G_0$$\Sigma$responsefunction index text/html 2026-05-13T14:18:47+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/documentation/language_reference/functions/createspectra?rev=1778681927&do=diff CreateSpectra CreateSpectra($O_1$,$O_2$,$\psi$) calculates \begin{equation} \langle \psi | O_2^{\dagger} \frac{1}{(\omega + \mathrm{i} \Gamma/2 + E_0 - O_1)} O_2 | \psi \rangle, \end{equation} with $E_0 = \langle \psi | O_1 | \psi \rangle$ and returns the result as a spectrum object and as a tri-diagonal matrix. $O_1$ and $O_2$ are allowed to be tables of operators or tables of wavefunctions. CreateSpectra can take a fourth element specifying options.$O_1$$O_2$$\psi$$E_0 = \langle \psi | O_1 | … text/html 2026-04-21T09:05:17+00:00 Victor Porée (victorp@undisclosed.example.com) https://www.quanty.org/forum/data/2026/change_of_basis?rev=1776762317&do=diff Change of basis asked by Victor Porée (2026/04/21 11:05) Hi, I am looking for a way to express eigenstates from a list of inital/final XAS states (Cr 2p3d) on the basis of pure |J,jz> for the 2p and |L,S,lz,sz> for the 3d. Best, text/html 2026-03-12T11:03:41+00:00 Michael L. Baker (michaelbaker@undisclosed.example.com) https://www.quanty.org/forum/data/2026/dsyev_failed_in_compactmatrixeigensystem?rev=1773313421&do=diff dsyev failed in CompactMatrixEigensystem asked by Michael L. Baker (2026/03/12 12:03) Dear Maurits, For larger RIXS calculations I encounter the following error within ResonantSpectra using Dense Methods: Intel MKL ERROR: Parameter 8 was incorrect on entry to DSYEV. dsyev failed in CompactMatrixEigensystem with info value -8 While working on matrix Coulomb Operator continue diagonalization with dsyvd text/html 2026-03-12T04:43:58+00:00 ted trewick (etrewick@undisclosed.example.com) https://www.quanty.org/forum/data/2026/respes_in_quanty?rev=1773290638&do=diff RESPES in quanty asked by ted trewick (2026/03/12 05:43) I would like to calculate resonant X-ray photoemission spectra in Quanty. The resonance in question is between a normal XPS process and and auger-like process, e.g. for the d-f resonance of Er: \[4d^{10}4f^{11} \xrightarrow{h\nu} 4d^{10}4f^{10}\] \[4d^{10}4f^{11} \xrightarrow{h\nu} 4d^{9}4f^{12}\xrightarrow{e^2/r} 4d^{10}4f^{10}\] The first process is trivial in quanty: text/html 2025-12-12T10:31:37+00:00 Sina Shokri (sinashokri@undisclosed.example.com) https://www.quanty.org/documentation/language_reference/functions/createresonantspectra?rev=1765535497&do=diff CreateResonantSpectra CreateResonantSpectra($O_1$,$O_2$,$O_3$,$O_4$,$\psi$) calculates \begin{equation} \langle \psi | O_3^{\dagger} \frac{1}{(\omega_1 - \mathrm{i} \Gamma_1/2 + E_0^{(1)} - O_1^{\dagger})} O_4^{\dagger} \frac{1}{(\omega_2 + \mathrm{i} \Gamma_2/2 + E_0^{(2)} - O_2)} O_4\frac{1}{(\omega_1 + \mathrm{i} \Gamma_1/2 + E_0^{(1)} - O_1)} O_3 | \psi \rangle, \end{equation} with $E_0^{(i)} = \langle \psi | O_i | \psi \rangle$. The spectrum is returned as a spectrum object. Input $O_1$ :… text/html 2025-11-26T13:04:53+00:00 Hamza (hamza@undisclosed.example.com) https://www.quanty.org/forum/data/2025/issue_with_different_orbital_counts_and_errors_in_blockbanddiagonalizer?rev=1764162293&do=diff Issue with Different Orbital Counts and Errors in BlockBandDiagonalizer asked by Hamza (2025/11/26 14:04) Dear Quanty developers, I am trying to calculate the XAS using the wannier approach as explained in the tutorial. My crystal structure contains two iron sites. Both sites have the same coordination number and the transition-metal neighbors are located at almost the same distances for both sites. text/html 2023-09-29T04:28:37+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Ahaverkort_x-rays_for_the_study_of_quantum_materials.pptx&ns=workshop&rev=1695961717&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="haverkort_x-rays_for_the_study_of_quantum_materials.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-18T09:57:05+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Ahaverkort_interaction_with_continuum.pptx&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1666087025&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="haverkort_interaction_with_continuum.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:35:10+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Aretegan_crispy_presentation.pptx&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696910&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="retegan_crispy_presentation.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:35:04+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Acrispy_python.zip&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696904&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/zip.svg" alt="crispy_python.zip" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:55+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Ahaverkort_dft_to_tightbinding_ligandfield.pptx&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696475&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="haverkort_dft_to_tightbinding_ligandfield.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:42+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Afrank_de_groot_heidelberg22_rixs.pptx&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696462&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="frank_de_groot_heidelberg22_rixs.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:42+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Ajuhin_dft-kedge2022.pptx&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696462&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="juhin_dft-kedge2022.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:23+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=juhin_dft-kedge2022.pptx&ns=&rev=1665696443&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="juhin_dft-kedge2022.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:19+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=haverkort_dft_to_tightbinding_ligandfield.pptx&ns=&rev=1665696439&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="haverkort_dft_to_tightbinding_ligandfield.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:27:13+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=frank_de_groot_heidelberg22_rixs.pptx&ns=&rev=1665696433&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/pptx.svg" alt="frank_de_groot_heidelberg22_rixs.pptx" loading="lazy" width="500" height="500" /> text/html 2022-10-13T21:22:11+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Atutorial_friday_morning.zip&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665696131&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/zip.svg" alt="tutorial_friday_morning.zip" loading="lazy" width="500" height="500" /> text/html 2022-10-12T18:20:17+00:00 Maurits W. Haverkort (maurits@undisclosed.example.com) https://www.quanty.org/?image=workshop%3Aheidelberg%3Aoctober_2022%3Anio_dft_to_ligandfield.zip&ns=workshop%3Aheidelberg%3Aoctober_2022&rev=1665598817&tab_details=history&media_do=diff&do=media <img src="https://www.quanty.org/lib/images/fileicons/svg/zip.svg" alt="nio_dft_to_ligandfield.zip" loading="lazy" width="500" height="500" />