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<H1></H1><div class="section" id="lammps-documentation">
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<h1>LAMMPS Documentation</h1>
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<div class="section" id="may-2016-version">
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<h2>14 May 2016 version</h2>
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<h2>31 May 2016 version</h2>
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</div>
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<div class="section" id="version-info">
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<h2>Version info:</h2>
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@ -493,7 +493,7 @@ name links to a sub-section below with more details.</p>
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<td>python</td>
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<td>lib/python</td>
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</tr>
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<tr class="row-even"><td><a class="reference internal" href="#reax"><span class="std std-ref">REAX</span></a></td>
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<tr class="row-even"><td><a class="reference internal" href="Section_tools.html#reax"><span class="std std-ref">REAX</span></a></td>
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<td>ReaxFF potential</td>
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<td>Aidan Thompson (Sandia)</td>
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<td><a class="reference internal" href="pair_reax.html"><span class="doc">pair_style reax</span></a></td>
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@ -5,7 +5,7 @@
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LAMMPS Documentation
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====================
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14 May 2016 version
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31 May 2016 version
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-------------------
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Version info:
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@ -175,7 +175,7 @@
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</div>
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<div class="section" id="description">
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<h2>Description</h2>
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<p>Apply a Langevin thermostat as described in <a class="reference internal" href="#schneider"><span class="std std-ref">(Schneider)</span></a>
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<p>Apply a Langevin thermostat as described in <a class="reference internal" href="fix_langevin_eff.html#schneider"><span class="std std-ref">(Schneider)</span></a>
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to a group of atoms which models an interaction with a background
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implicit solvent. Used with <a class="reference internal" href="fix_nve.html"><span class="doc">fix nve</span></a>, this command
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performs Brownian dynamics (BD), since the total force on each atom
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@ -203,7 +203,7 @@ dt damp), where Kb is the Boltzmann constant, T is the desired
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temperature, m is the mass of the particle, dt is the timestep size,
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and damp is the damping factor. Random numbers are used to randomize
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the direction and magnitude of this force as described in
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<a class="reference internal" href="#dunweg"><span class="std std-ref">(Dunweg)</span></a>, where a uniform random number is used (instead of
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<a class="reference internal" href="fix_langevin_eff.html#dunweg"><span class="std std-ref">(Dunweg)</span></a>, where a uniform random number is used (instead of
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a Gaussian random number) for speed.</p>
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<p>Note that unless you use the <em>omega</em> or <em>angmom</em> keywords, the
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thermostat effect of this fix is applied to only the translational
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@ -189,8 +189,8 @@ short distances by a function</p>
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\frac{s_{ij} r_{ij} }{2} \right)
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\exp \left( - s_{ij} r_{ij} \right) \end{equation}\]</div>
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<p>This function results from an adaptation to point charges
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<a class="reference internal" href="#noskov"><span class="std std-ref">(Noskov)</span></a> of the dipole screening scheme originally proposed
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by <a class="reference internal" href="#thole"><span class="std std-ref">Thole</span></a>. The scaling coefficient <span class="math">\(s_{ij}\)</span> is determined
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<a class="reference internal" href="tutorial_drude.html#noskov"><span class="std std-ref">(Noskov)</span></a> of the dipole screening scheme originally proposed
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by <a class="reference internal" href="tutorial_drude.html#thole"><span class="std std-ref">Thole</span></a>. The scaling coefficient <span class="math">\(s_{ij}\)</span> is determined
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by the polarizability of the atoms, <span class="math">\(\alpha_i\)</span>, and by a Thole
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damping parameter <span class="math">\(a\)</span>. This Thole damping parameter usually takes
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a value of 2.6, but in certain force fields the value can depend upon
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<!-- HTML_ONLY -->
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<HEAD>
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<TITLE>LAMMPS Users Manual</TITLE>
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<META NAME="docnumber" CONTENT="14 May 2016 version">
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<META NAME="docnumber" CONTENT="31 May 2016 version">
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<META NAME="author" CONTENT="http://lammps.sandia.gov - Sandia National Laboratories">
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<META NAME="copyright" CONTENT="Copyright (2003) Sandia Corporation. This software and manual is distributed under the GNU General Public License.">
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</HEAD>
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<H1></H1>
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LAMMPS Documentation :c,h3
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14 May 2016 version :c,h4
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31 May 2016 version :c,h4
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Version info: :h4
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