59 citations · 97 across the 7 of their papers we have counts for
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CP conditions for GKSL-like master equations
Akane Watanabe, Takayuki Suzuki, Makoto Unoki +1
The complete positivity (CP) of a quantum dynamical map (QDM) is, in general, difficult to show when its master equation (ME) does not conform to the Gorini-Kossakowski-Sudarshan-L…
A controlled-NOT gate in a chain of qubits embedded in a spin field-effect transistor and its process tomography
Makoto Unoki, Hiromichi Nakazato, Kazuya Yuasa +1
We have investigated the realizability of the controlled-NOT (CNOT) gate and characterized the gate operation by quantum process tomography for a chain of qubits, realized by elect…
Distillation of Entanglement between Distant Systems by Repeated Measurements on Entanglement Mediator
G. Compagno, A. Messina, H. Nakazato +3
A recently proposed purification method, in which the Zeno-like measurements of a subsystem can bring about a distillation of another subsystem in interaction with the former, is u…
A Purification Scheme and Entanglement Distillations
Hiromichi Nakazato, Makoto Unoki, Kazuya Yuasa
A purification scheme which utilizes the action of repeated measurements on a (part of a total) quantum system is briefly reviewed and is applied to a few simple systems to show ho…
Entanglement Purification through Zeno-like Measurements
Kazuya Yuasa, Hiromichi Nakazato, Makoto Unoki
We present a novel method to purify quantum states, i.e. purification through Zeno-like measurements, and show an application to entanglement purification.
Preparation and Entanglement Purification of Qubits through Zeno-like Measurements
Hiromichi Nakazato, Makoto Unoki, Kazuya Yuasa
A novel method of purification, purification through Zeno-like measurements [H. Nakazato, T. Takazawa, and K. Yuasa, Phys. Rev. Lett. 90, 060401 (2003)], is discussed extensively a…