Uses the Bennett-Wiesner dense quantum coding protocol to transmit 2 classical bits using 1 EPR pair and 1 bit of quantum communication. You can specify the bits to be transmitted at the command line by typing chp densecoding zz for 00 chp densecoding zZ for 01 chp densecoding Zz for 10 chp densecoding ZZ for 11 These will be stored in qubits 0 and 1. The program first prepares an EPR pair across qubits 2 and 3 (2 is Alice's half and 3 is Bob's half). Alice then applies unitaries to her half of the EPR pair depending on qubits 0 and 1. Next, Alice's half is transferred to qubit 4, which represents the 1 bit of quantum communication to Bob. Finally, Bob applies unitaries to his qubits (4 and 3), and then measures them to read Alice's message. # h 2 c 2 3 c 1 2 h 2 c 0 2 h 2 c 2 4 c 4 2 c 4 3 h 4 m 4 m 3