• Bell state
• Bell states

Bell state (suomeksi)

Määritelmät:

• (lb, en, quantum information science) One of a set of four entangled states, namely $,\; \backslash Phi^+\backslash rangle\; =\; \{1\backslash over\; \backslash sqrt\{2)\; (\; ,\; 00\backslash rangle\; +\; ,\; 11\backslash rangle\; )$, $,\; \backslash Phi^-\backslash rangle\; =\; \{1\backslash over\; \backslash sqrt\{2)\; (,\; 00\backslash rangle\; -\; ,\; 11\backslash rangle\; )$,    $,\; \backslash Psi^+\backslash rangle\; =\; \{1\backslash over\; \backslash sqrt\{2)\; (,\; 01\backslash rangle\; +\; ,\; 10\backslash rangle\; )$, and $,\; \backslash Psi^-\backslash rangle\; =\; \{1\; \backslash over\; \backslash sqrt\{2)\; (,\; 01\backslash rangle\; -\; ,\; 10\backslash rangle\; )$, where $,\; xy\backslash rangle\; :=\; ,\; x\backslash rangle\; \backslash otimes\; ,\; y\backslash rangle$; these are the simplest examples of entangled states.