StressCorrFunc.hpp

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 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
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 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef APPLICATIONS_DYNAMICPROPS_STRESSCORRFUNC_HPP
#define APPLICATIONS_DYNAMICPROPS_STRESSCORRFUNC_HPP
 
#include <string>
#include <vector>
 
#include "applications/dynamicProps/TimeCorrFunc.hpp"
#include "brains/ForceManager.hpp"
#include "brains/SimInfo.hpp"
#include "brains/Thermo.hpp"
#include "math/SquareMatrix3.hpp"
#include "utils/Accumulator.hpp"
 
namespace OpenMD {
 
  class StressCorrFunc : public SystemACF<Mat3x3d> {
  public:
    StressCorrFunc(SimInfo* info, const std::string& filename,
                   const std::string& sele1, const std::string& sele2);
 
  private:
    virtual void computeProperty1(int frame);
    virtual Mat3x3d calcCorrVal(int frame1, int frame2);
 
    std::vector<Mat3x3d> action_;
    std::vector<RealType> time_;
 
    ForceManager* forceMan_;
    Thermo* thermo_;
    Utils::RealAccumulator pressure_ {};
  };
}  // namespace OpenMD
 
#endif