<p>Perform constant NVE integration to update position, velocity,
orientation, and angular velocity for body particles in the group each
timestep. V is volume; E is energy. This creates a system trajectory
consistent with the microcanonical ensemble. See <aclass="reference internal"href="Section_howto.html#howto-14"><spanclass="std std-ref">Section 6.14</span></a> of the manual and the <aclass="reference internal"href="body.html"><spanclass="doc">body</span></a>
doc page for more details on using body particles.</p>
<p>This fix differs from the <aclass="reference internal"href="fix_nve.html"><spanclass="doc">fix nve</span></a> command, which
assumes point particles and only updates their position and velocity.</p>
<p><strong>Restart, fix_modify, output, run start/stop, minimize info:</strong></p>
<p>No information about this fix is written to <aclass="reference internal"href="restart.html"><spanclass="doc">binary restart files</span></a>. None of the <aclass="reference internal"href="fix_modify.html"><spanclass="doc">fix_modify</span></a> options
are relevant to this fix. No global or per-atom quantities are stored
by this fix for access by various <aclass="reference internal"href="Section_howto.html#howto-15"><spanclass="std std-ref">output commands</span></a>. No parameter of this fix can
be used with the <em>start/stop</em> keywords of the <aclass="reference internal"href="run.html"><spanclass="doc">run</span></a> command.
This fix is not invoked during <aclass="reference internal"href="minimize.html"><spanclass="doc">energy minimization</span></a>.</p>
</div>
<divclass="section"id="restrictions">
<h2>Restrictions</h2>
<p>This fix is part of the BODY package. It is only enabled if LAMMPS
was built with that package. See the <aclass="reference internal"href="Section_start.html#start-3"><spanclass="std std-ref">Making LAMMPS</span></a> section for more info.</p>
<p>This fix requires that atoms store torque and angular momementum and a
quaternion as defined by the <aclass="reference internal"href="atom_style.html"><spanclass="doc">atom_style body</span></a>
command.</p>
<p>All particles in the group must be body particles. They cannot be
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