Commit 5c5030d0 authored by Nguyen, Thien Minh's avatar Nguyen, Thien Minh
Browse files

Added a VQE-style example 



Signed-off-by: default avatarThien Nguyen <nguyentm@ornl.gov>
parent 0a3bc70b

.gitignore

+4 −0
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@@ -49,3 +49,7 @@ __pycache__/ 
# IDE files

.vscode/*

.theia/*



# LLVM files

*.ll 

*.bc
 
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examples/qsharp/QirTarget.qs

+16 −0
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@@ -11,6 +11,9 @@ namespace Microsoft.Quantum.Instructions { 
        body intrinsic;

    }



    operation Ry (theta : Double, qb : Qubit) : Unit {

        body intrinsic;

    }

    operation Rz (theta : Double, qb : Qubit) : Unit {

        body intrinsic;

    }
@@ -106,6 +109,19 @@ namespace Microsoft.Quantum.Intrinsic { 
		}

	}



    @Inline()

    operation Ry(theta : Double, qb : Qubit) : Unit

    is Adj {

        body  (...)

        {

            Phys.Ry(theta, qb);  

		}

        adjoint (...)

        {

            Phys.Ry(-theta, qb);  

		}

	}



    @Inline()

    operation Rz(theta : Double, qb : Qubit) : Unit

    is Adj + Ctl {

examples/qsharp/source.qs→examples/qsharp/bell.qs

+12 −3
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@@ -4,17 +4,26 @@ open Microsoft.Quantum.Intrinsic; 
operation TestBell(count : Int) : Int {

    // Simple bell test

    mutable numOnes = 0;

    mutable agree = 0;

    use q = Qubit[2];

    for test in 1..count {

        H(q[0]);

        CNOT(q[0],q[1]);

        let res = M(q[0]);

        let res0 = M(q[0]);

        let res1 = M(q[1]);

        if res0 == res0 {

            set agree += 1;

        }



        // Count the number of ones we saw:

        if res == One {

        if res0 == One {

            set numOnes += 1;

            // Reset

            X(q[0]);

        }

        if res1 == One {

            // Reset

            X(q[0]);

            X(q[1]);

        }

    }

    return numOnes;

examples/qsharp/driver.cpp→examples/qsharp/bell_driver.cpp

+1 −1
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@@ -9,7 +9,7 @@ qcor_include_qsharp(XACC__TestBell__body, int64_t, int64_t) 
// Compile with:

// Include both the qsharp source and this driver file 

// in the command line.

// $ qcor source.qs driver.cpp

// $ qcor bell.qs bell_driver.cpp

// Run with:

// $ ./a.out

int main() {

examples/qsharp/vqe_ansatz.qs

0 → 100644
+30 −0
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namespace XACC 

{

open Microsoft.Quantum.Intrinsic;

operation Deuteron(theta : Double, shots: Int) : Double {

    mutable numParityOnes = 0;

    use (qubits = Qubit[2])

    {

        for test in 1..shots {

            X(qubits[0]);

            Ry(theta, qubits[1]);

            CNOT(qubits[1], qubits[0]);

            // Let's measure <X0X1>

            H(qubits[0]);

            H(qubits[1]);

            if M(qubits[0]) != M(qubits[1]) 

            {

                set numParityOnes += 1;

            }

            if M(qubits[0]) == One {

                X(qubits[0]);

            }

            if M(qubits[1]) == One {

                X(qubits[1]);

            }

        }

    }

    let res =  IntAsDouble(shots - numParityOnes)/IntAsDouble(shots) - IntAsDouble(numParityOnes)/IntAsDouble(shots);

    return res;

}

}
 
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