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quant-ph2000
Quantum channel locally interacting with environment
Satoshi Ishizaka
The quantum channel subject to local interaction with two-level environment is studied. The two-level environment is regarded as a quantum bit (qubit) as well as a pair of particle…
quant-ph2000
Maximally entangled mixed states in two qubits
Satoshi Ishizaka, Tohya Hiroshima
We propose novel mixed states in two qubits, ``maximally entangled mixed states'', which have a property that the amount of entanglement of these states cannot be increased further…