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ÕªÒªµÄµÚÒ»¾äÊÇ£ºQUANTUM ESPRESSO is an integrated suite of computer codes for electronic-structure calculations and materials modeling, based on density-functional theory, plane waves, and pseudopotentials (norm-conserving, ultrasoft, and projector-augmented wave).


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[ Last edited by xirainbow on 2009-7-19 at 19:18 ]
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fegg7502(½ð±Ò+1,VIP+0):thank you very much! 7-19 21:06
I think it means people can DIY PAW albeit it is difficult.
3Â¥2009-07-19 20:25:51
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nuaa8222

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QUANTUM ESPRESSO Õâ¸öÈí¼þûÓùý¡­¡­
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xirainbow

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yjr(½ð±Ò+1,VIP+0):лл£¡£¡ 7-21 05:44
wuli8(½ð±Ò+1,VIP+0):3ks 7-23 21:59
ÓÉÓÚESPRESSOÊÇ¿ªÔ´µÄ£¬Òò´ËÓкܶàС×é»ùÓÚESPRESSO·Ö±ð±àд×Ô¼ºµÄ³ÌÐò£¬ÓÃÒÔÍØ¿íESPRESSOµÄ¼ÆË㷶Χ¡£
        ´ËÎÄÖÐÁоÙÁ˼¸¸öС×éµÄ¹¤×÷At the time of the writing of the present paper, third-party scientific software available to the QUANTUM ESPRESSO users¡¯ community include: yambo, a general-purpose code for excited-state calculations within many-body perturbation theory [166]; casino, a code for electronic-structure quantum Monte Carlo simulations [152]; want, a code for the simulation of ballistic transport in nanostructures, based on Wannier functions [167]; xcrysden, a molecular graphics application, especially suited for periodic structures [150]. The qe-forge portal is expected to burst the production and availability of third-party software compatible with QUANTUM ESPRESSO. Among the projects already available, or soon-to-be available, on qe-forge, we mention: SaX [154], an open-source project implementing state-of-the-art many-body perturbation theory methods for excited states; dmft [153], a code to perform Dynamical Mean-Field Theory calculations on top of a tight-binding representation of the DFT band structure; qha, a set of codes for calculating thermal properties of materials within the quasiharmonic approximation [168]; pwtk, a fully functional Tcl scripting interface to PWscf [169].

[ Last edited by xirainbow on 2009-7-20 at 22:07 ]
8Â¥2009-07-20 22:01:47
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xirainbow

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wuli8(½ð±Ò+2,VIP+0):3ks 7-23 21:59
ESPRESSOÏÂÒ»²½µÄ·¢Õ¹ÖصãÔÚÓÚ£º Ò»¡¢¼¤·¢Ì¬£¬¶þ¡¢GW·½·¨£¨Ó¦¸ÃÊǸñÁÖº¯Êý·½·¨£©¡£ÎÒ¶ÔµÚ¶þ¸ö×îΪÆÚ´ý£º£©
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         Many of the soon-to-come additions will deal with excited-state calculations within timedependent DFT (TDDFT [158, 159]) and/or many-body perturbation theory [160]. A new approach to the calculation of optical spectra within TDDFT has been recently developed [161], based on a finite-frequency generalization of densityfunctional perturbation theory [54, 55], and implemented in QUANTUM ESPRESSO. Another important development presently under way is an efficient implementation of GWcalculations for large systems (whose size is of the order of a few hundreds inequivalent atoms) [162]. The implementation of efficient algorithms for calculating correlation energies at the RPA level is also presently under way [163, 164, 165]. It is foreseen that by the time this paper will appear, many of these developments will be publicly released.

[ Last edited by xirainbow on 2009-7-20 at 22:08 ]
9Â¥2009-07-20 22:04:11
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condensed

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