LatticeYangMills
energydensity.h
Go to the documentation of this file.
1 /******************************************************************************
2 *
3 * MIT License
4 *
5 * Copyright (c) 2018 Giovanni Pederiva
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 ******************************************************************************/
25 
34 #pragma once
35 #include <vector>
36 #include <string>
37 #include "Observables/observable.h"
38 #include "Math/latticemath.h"
39 
52 class EnergyDensity : public Observable {
53 public:
54  EnergyDensity();
55  void initObservable(GluonField *lattice);
56  void compute();
57 
58 private:
59  std::array<int, 4> m_size;
60  // auxiliary variables
61  double m_norm;
62  SU3 Gmn;
63 };
Implementation of a class to perform arithmetics between links.
Definition: su3.h:53
Contains the definition of the Observable prototype.
Class that represents the QCD field as an array of 4 SU3 lattices.
Definition: field.h:53
void compute()
computes the EnergyDensity value using the clover definition of the field strength tensor ...
Implementation of the Energy Density operator class.
Definition: energydensity.h:52
void initObservable(GluonField *lattice)
initializer of the EnergyDensity class
Prototype for the Observable class group.
Definition: observable.h:52
EnergyDensity()
constructor of the EnergyDensity class