<div dir="ltr">Dear Prof. Tran,<div><br></div><div>                  Thank you so much. It will be very useful.</div><div><br></div><div>with regards,</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 31 Jan 2023 at 15:49, <<a href="mailto:fabien.tran@vasp.at">fabien.tran@vasp.at</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Yes, alpha is quite often considered as a tunable parameter. A certain <br>
number of papers on that topic have been published, e.g.,<br>
<a href="https://aip.scitation.org/doi/10.1063/1.4722993" rel="noreferrer" target="_blank">https://aip.scitation.org/doi/10.1063/1.4722993</a><br>
<br>
More papers can be found with google (<a href="https://www.google.com" rel="noreferrer" target="_blank">https://www.google.com</a>) with <br>
keywords like "hybrid functionals" and "fraction of Hartree-Fock".<br>
<br>
On 31.01.2023 10:29, shamik chakrabarti wrote:<br>
> Dear Wien2k users,<br>
> <br>
>                          Whether Hartree-Fock exchange Alpha is a<br>
> tunable parameter? Can we change the parameter to see that at which<br>
> value of Alpha, the experimental result matches with simulation?<br>
> Especially when with Alpha=0.25 the calculation diverges!<br>
> <br>
> Looking forward to hearing from you.<br>
> <br>
> with regards<br>
> <br>
> --<br>
> <br>
> Dr. Shamik Chakrabarti<br>
> Research Fellow<br>
> Department of Physics<br>
> Indian Institute of Technology Patna<br>
> Bihta-801103<br>
> Patna<br>
> Bihar, India<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:small">Dr. Shamik Chakrabarti</div><div style="font-size:small">Research Fellow </div><div style="font-size:small">Department of Physics</div><div style="font-size:small">Indian Institute of Technology Patna</div><div style="font-size:small">Bihta-801103</div><div style="font-size:small">Patna</div><div style="font-size:small">Bihar, India</div></div></div></div></div></div></div></div>