Anders and Briegel in Python
選択できるのは25トピックまでです。 トピックは、先頭が英数字で、英数字とダッシュ('-')を使用した35文字以内のものにしてください。

51 行
1.4KB

  1. import json
  2. import numpy as np
  3. from abp import clifford, qi
  4. import sys
  5. import os
  6. import itertools as it
  7. from string import maketrans
  8. def get_ab_cz_table():
  9. """ Load anders and briegel's CZ table """
  10. filename = "anders_briegel/cphase.tbl"
  11. filename = os.path.join(os.path.dirname(sys.path[0]), filename)
  12. with open(filename) as f:
  13. s = f.read().translate(maketrans("{}", "[]"))
  14. return np.array(json.loads(s))
  15. def test_cz_table():
  16. """ Does our clifford code work with anders & briegel's table? """
  17. state_table = clifford.get_state_table(clifford.unitaries)
  18. ab_cz_table = get_ab_cz_table()
  19. rows = it.product([0, 1], it.combinations_with_replacement(range(24), 2))
  20. for bond, (c1, c2) in rows:
  21. # Pick the input state
  22. input_state = state_table[bond, c1, c2]
  23. # Go and compute the output
  24. computed_output = np.dot(qi.cz, input_state)
  25. computed_output = clifford.normalize_global_phase(computed_output)
  26. # Now look up the answer in the table
  27. bondp, c1p, c2p = ab_cz_table[bond, c1, c2]
  28. table_output = state_table[bondp, c1p, c2p]
  29. assert np.allclose(computed_output, table_output)
  30. def _test_match():
  31. """ Tests that they actually match """
  32. ab_cz_table = get_ab_cz_table()
  33. rows = it.product([0, 1], it.combinations_with_replacement(range(24), 2))
  34. for bond, (c1, c2) in rows:
  35. assert np.all(ab_cz_table == clifford.cz_table)