QUDITS IN TWO WAY DETERMINISTIC QUANTUM KEY DISTRIBUTION

摘要

8 ABSTRACT OUDITS IN TWO WAY DETERMTNISTIC OUANTTYM KEY DISTRIBUTION 5 THE PRESENT INVENTION RELATES TO A QUDITS IN TWO WAY DETERMINISTIC QUANTUM KEY DISTRIBUTION WHEREIN IT INVOLVED A TWO WAY TRANSMISSION WHERE QUBITS ARE SENT TO AND FROM BETWEEN COMMUNICATING PARTIES WHILE INFORMATION IS ENCODED BY UNITARY TRANSFORMERS ON THE QUBITS. A PROTOCOL SEES 01 SENDING TO U2 A STATE THAT UL PREPARED AND WHEREIN U2 WOULD THEN ENCODE THE SAID RECEIVED PROTOCOL WITH UNITARY 10 TRANSFORMATION. U2 WOULD THEN THEREAFTER SEND THE ENCODED STATE BACK TO UL WHO WOULD THEN MEASURE OR DECODE THE SENT STATE DETERMINISTICALLY. IN ORDER TO ENSURE THE SECURITY OF THE PROTOCOL, A CONTROL MODE USED AND IS RANDOMLY DONE WITH A CERTAIN PROBABILITY WHEREIN INSTEAD OF ENCODING. U2 WOULD DO A PROJECTIVE MEASUREMENTS ON THE QUDIT RECEIVED WHILST U I MEASURES THE QUDIT SENT BY U2. 1 5 FIGILRE I @OO7693Q 111051")Q