espressopp.interaction.CoulombTruncatedUniqueCharge

\[U = \frac{Q}{d}\]

where \(Q\) is the product of the charges of the two particles and \(d\) is their distance from each other.

In this interaction potential, a unique \(Q = q_iq_j\) value is specified per potential. For a more flexible truncated Coulomb interaction potential where each individual particle has its own charge \(q_i\), see CoulombTruncated.

espressopp.interaction.CoulombTruncatedUniqueCharge(qq, cutoff, shift)

Parameters:

• qq (real) – (default: 1.0)
• cutoff – (default: infinity)
• shift – (default: “auto”)

espressopp.interaction.VerletListCoulombTruncatedUniqueCharge(vl)

Parameters:vl –

espressopp.interaction.VerletListCoulombTruncatedUniqueCharge.getPotential(type1, type2)

Parameters:

• type1 –
• type2 –

Return type:

espressopp.interaction.VerletListCoulombTruncatedUniqueCharge.setPotential(type1, type2, potential)

Parameters:

• type1 –
• type2 –
• potential –

espressopp.interaction.CellListCoulombTruncatedUniqueCharge(stor)

Parameters:stor –

espressopp.interaction.CellListCoulombTruncatedUniqueCharge.setPotential(type1, type2, potential)

Parameters:

• type1 –
• type2 –
• potential –

espressopp.interaction.FixedPairListCoulombTruncatedUniqueCharge(system, vl, potential)

Parameters:

• system –
• vl –
• potential –

espressopp.interaction.FixedPairListCoulombTruncatedUniqueCharge.setPotential(potential)

Parameters:potential –

class espressopp.interaction.CoulombTruncatedUniqueCharge.CoulombTruncatedUniqueCharge

The CoulombTruncatedUniqueCharge potential.