Hidden Bell Correlations in the Four-Level Atom

作者：Man'ko Margarita A^*; Man'ko Vladimir I

来源：Journal of Russian Laser Research, 2016, 37(1): 1-9.

DOI：10.1007/s10946-016-9541-4

• Bell inequality
• hidden correlations
• qudit
• superconducting circuit

We extend the Bell inequality known for two qubits to the four-level atom, including an artificial atom realized by the superconducting circuit, and qudit with j = 3/2. We formulate the extended inequality as the inequality valid for an arbitrary Hermitian nonnegative 4x4 matrix with unit trace for both separable and entangled matrices.

• 出版日期2016-1