com.gluonhq.strange.gate.Fourier Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of strange Show documentation
The newest version!
/*
 * BSD 3-Clause License
 *
 * Copyright (c) 2018, 2019, Gluon Software
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.gluonhq.strange.gate;

import com.gluonhq.strange.Block;
import com.gluonhq.strange.BlockGate;
import com.gluonhq.strange.Complex;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class Fourier extends BlockGate {

    protected Complex[][] matrix = null;
    protected int dim;
    protected int size;
    
    /**
     * Create a Fourier gate with the given size (dimensions), starting at idx
     * @param dim number of qubits affected by this gate
     * @param idx the index of the first qubit in the circuit affected by this gate
     */
    public Fourier(int dim, int idx) {
        super(new Block("Fourier", dim), idx);
        this.dim = dim;
        this.size = 1 < getAffectedQubitIndexes() {
        return IntStream.range(idx, idx+dim).boxed().collect(Collectors.toList());
    }

    @Override
    public int getHighestAffectedQubitIndex() {
        return dim+idx-1;
    }
}