zn2021_hackquest_quantum_service_exp.py

from math import pi
from socket import socket

s = socket()
s.connect(('quantum.kelte.cc', 17171))

prog = ''

# Hadamard for the 0th qubit
prog += 'H\n'
for i in xrange(1, 8):
    # Take the ith qubit
    prog += 'SWAP %s\n' % i
    ids = list(range(i - 1, 0, -1)) + [i] # We have 0 swapped with i
    for j in xrange(len(ids)):
        theta = -pi / (2 ** j) / 4
        # Controlled R1 implementation (global phase changed)
        prog += 'Rz %f\n' % theta
        prog += 'CX %s\n' % ids[j]
        prog += 'Rz %f\n' % -theta
        prog += 'CX %s\n' % ids[j]
    # Apply Hadamard
    prog += 'H\n'
    # Swap back with the 0th qubit
    prog += 'SWAP %s\n' % i

# Reverse all the qubits
prog += '''SWAP 1
SWAP 6
SWAP 1
SWAP 2
SWAP 5
SWAP 2
SWAP 3
SWAP 4
SWAP 3
SWAP 7
'''

# Implement Hadamard
prog = prog.replace('H', 'Z Ry %f' % (pi / 2)).replace('\n', ' ')

s.recv(128)

s.send('%s\n' % prog.strip())

print s.recv(56).strip().decode('hex')

# ZN{Qu4NtuM_H3ll0_w0RLD_2021}