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cs.IT2006
Quantum communication is possible with pure state
Arindam Mitra
It is believed that quantum communication is not possible with a pure ensemble of states because quantum entropy of pure state is zero. This is indeed possible due to geometric con…
cs.IT2005
A particle can carry more than one bit of information
Arindam Mitra
It is believed that a particle cannot carry more than one bit of information. It is pointed out that particle or single-particle quantum state can carry more than one bit of inform…
cs.IT2005
No-cloning principal can alone provide security
Arindam Mitra
Existing quantum key distribution schemes need the support of classical authentication scheme to ensure security. This is a conceptual drawback of quantum cryptography. It is point…