Quantum cloning

Quantum cloning is a process that takes an arbitrary, unknown quantum state and makes an exact copy without altering the original state in any way… (More)
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Papers overview

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2008
2008
Quantum cloning machines for equatorial qubits are studied. For 1 to 2 phase-covariant quantum cloning machine, using Hilbert… (More)
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Review
2005
Review
2005
1 2 FULL ABSTRACT After a brief introduction to the quantum no-cloning theorem and its link with the linearity and causality of… (More)
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2005
2005
The possibility of cloning a d-dimensional quantum system without an ancilla is explored, extending on the economical phase… (More)
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2002
2002
Although perfect copying of unknown quantum systems is forbidden by the laws of quantum mechanics, approximate cloning is… (More)
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1999
1999
We show that the condition of no faster-than-light signalling restricts the number of quantum states that can be cloned in a… (More)
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Highly Cited
1998
Highly Cited
1998
After a short introduction to classic cryptography we explain thoroughly how quantum cryptography works. We present then an… (More)
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1998
1998
Perfect quantum cloning machines (QCM) would allow one to use quantum non-locality for arbitrary fast signaling. However, perfect… (More)
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1998
1998
We establish the best possible approximation to a perfect quantum cloning machine that produces two clones out of a single input… (More)
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Highly Cited
1997
Highly Cited
1997
We present quantum cloning machines that transform N identical qubits intoM . N identical copies and we prove that the fidelity… (More)
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1997
1997
We analyze various eavesdropping strategies on a quantum cryptographic channel. We present the optimal strategy for an… (More)
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