Source code for netket.hilbert.particle
# Copyright 2021 The NetKet Authors - All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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from typing import Tuple, Union
from .continuous_hilbert import ContinuousHilbert
class Particle(ContinuousHilbert):
r"""Hilbert space derived from AbstractParticle for
Fermions."""
[docs] def __init__(
self,
N: int,
L: Tuple[float, ...],
pbc: Union[bool, Tuple[bool, ...]],
):
"""
Constructs new ``Particles`` given specifications
of the continuous space they are defined in.
Args:
N: Number of particles
L: spatial extension in each spatial dimension
pbc: Whether or not to use periodic boundary
conditions for each spatial dimension.
If bool, its value will be used for all spatial
dimensions.
"""
# Assume 1D if L is a scalar
if not hasattr(L, "__len__"):
L = (L,)
if isinstance(pbc, bool):
pbc = [pbc] * len(L)
self._N = N
super().__init__(L, pbc)
@property
def size(self) -> int:
return self._N * len(self._extent)
@property
def n_particles(self) -> int:
r"""The number of particles"""
return self._N
@property
def _attrs(self):
return (self._N, self.extent, self.pbc)
def __repr__(self):
return "ContinuousParticle(N={}, d={})".format(
self.n_particles, len(self.extent)
)