barriers added

Author: mrtkp9993

Bernstein-Vazirani Algorithm.py

@@ -19,24 +19,32 @@
 
 circuit.x(qr[3])  # initialize the ancilla qubit in the |1> state
 
+circuit.barrier()
+
 # First step of quantum algorithms - Prepare the superposition
 # For superposition, we apply the Hadamard gate on all qubits
 circuit.h(qr[0])
 circuit.h(qr[1])
 circuit.h(qr[2])
 circuit.h(qr[3])
 
+circuit.barrier()
+
 # Oracle function
 circuit.cx(qr[0], qr[3])
 circuit.cx(qr[1], qr[3])
 circuit.cx(qr[2], qr[3])
 
+circuit.barrier()
+
 # Apply Hadamard gates after querying oracle function
 circuit.h(qr[0])
 circuit.h(qr[1])
 circuit.h(qr[2])
 circuit.h(qr[3])
 
+circuit.barrier()
+
 # Measure qubit
 circuit.measure(qr[0], cr[0])
 circuit.measure(qr[1], cr[1])

Deutsch's Algorithm.py

@@ -25,18 +25,26 @@
 
 circuit.x(qr[1])  # initialize the ancilla qubit in the |1> state
 
+circuit.barrier()
+
 # First step of quantum algorithms - Prepare the superposition
 # For superposition, we apply the Hadamard gate on both qubits
 circuit.h(qr[0])
 circuit.h(qr[1])
 
+circuit.barrier()
+
 # Oracle function
 circuit.cx(qr[0], qr[1])
 
+circuit.barrier()
+
 # Apply Hadamard gates after querying oracle function
 circuit.h(qr[0])
 circuit.h(qr[1])
 
+circuit.barrier()
+
 # Measure qubit
 circuit.measure(qr[0], cr[0])
 

Deutsch-Jozsa Algorithm.py

@@ -20,27 +20,37 @@
 
 circuit.x(qr[2])  # initialize the ancilla qubit in the |1> state
 
+circuit.barrier()
+
 # First step of quantum algorithms - Prepare the superposition
 # For superposition, we apply the Hadamard gate on all qubits
 circuit.h(qr[0])
 circuit.h(qr[1])
 circuit.h(qr[2])
 
+circuit.barrier()
+
 # Oracle function
 circuit.h(qr[0])
 circuit.cx(qr[1], qr[0])
 circuit.z(qr[2])
 circuit.h(qr[0])
 
+circuit.barrier()
+
 # Apply Hadamard gates after querying oracle function
 circuit.h(qr[0])
 circuit.h(qr[1])
 circuit.h(qr[2])
 
+circuit.barrier()
+
 # Measure qubit
 circuit.measure(qr[0], cr[0])
 circuit.measure(qr[1], cr[1])
 
+circuit.barrier()
+
 # Run our circuit with local simulator
 backend = BasicAer.get_backend('qasm_simulator')
 shots = 1024

README.md

@@ -21,6 +21,6 @@ Quantum computing examples with Qiskit.
 
 ![Bernstein-Vazirani Algorithm](./circuit_diagrams/03_bernstein_vazirani.png)
 
-<!--stackedit_data:
-eyJoaXN0b3J5IjpbLTg0NDI4OTY5OF19
--->
+**Simon's Algorithm**
+
+> Problem. For given an oracle function f : {0, 1}^n -> {0, 1}^n which has period `a` like following: ∃!a != 0: ∀x f(x) = f(y) => y = x ⊕ a. Determine a.