Source code for qiskit_nature.second_q.hamiltonians.lattices.boundary_condition

# This code is part of a Qiskit project.
#
# (C) Copyright IBM 2021, 2023.
#
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
#
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
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"""
This module declares the available boundary conditions.
"""

from enum import Enum


class BoundaryCondition(Enum):
    """Boundary condition enum."""

    OPEN = "open"
    PERIODIC = "periodic"