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42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/* energy.h: Declarations for energy.c
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Copyright 2013 Hendrik Weimer
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This file is part of libquantum
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libquantum is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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libquantum is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libquantum; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA
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*/
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#ifndef __ENERGY_H
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#define __ENERGY_H
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#include "config.h"
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#include "qureg.h"
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enum {
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QUANTUM_SOLVER_LANCZOS,
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QUANTUM_SOLVER_LANCZOS_MODIFIED,
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QUANTUM_SOLVER_IMAGINARY_TIME
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};
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extern double quantum_groundstate(quantum_reg *reg, double epsilon,
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quantum_reg H(MAX_UNSIGNED, double),
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int solver, double stepsize);
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#endif
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