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7 papers · 2 filters
Thwarted dynamics by partial projective measurements
Bruno Bellomo, Giuseppe Compagno, Hiromichi Nakazato +1
The dynamics of a system, made of a particle interacting with a field mode, thwarted by the action of repeated projective measurements on the particle, is examined. The effect of t…
Extraction of a squeezed state in a field mode via repeated measurements on an auxiliary quantum particle
Bruno Bellomo, Giuseppe Compagno, Hiromichi Nakazato +1
The dynamics of a system, consisting of a particle initially in a Gaussian state interacting with a field mode, under the action of repeated measurements performed on the particle,…
Efficient Generation of a Maximally Entangled State by Repeated On- and Off-Resonant Scattering of Ancilla Qubits
Kazuya Yuasa, Daniel Burgarth, Vittorio Giovannetti +1
A scheme for preparing two fixed non-interacting qubits in a maximally entangled state is presented. By repeating on- and off-resonant scattering of ancilla qubits, the state of th…
Extraction of an Entanglement by Repetition of the Resonant Transmission of an Ancilla Qubit
Kazuya Yuasa
A scheme for the extraction of entanglement in two noninteracting qubits (spins) is proposed. The idea is to make use of resonant transmission of ancilla qubit through the two fixe…
State Tomography of a Qubit through Scattering of a Probe Qubit
Antonella De Pasquale, Kazuya Yuasa, Hiromichi Nakazato
We discuss the state tomography of a fixed qubit (a spin-1/2 target particle), which is in general in a mixed state, through 1D scattering of a probe qubit off the target. Two stra…
Entanglement Generation by Qubit Scattering in Three Dimensions
Yuichiro Hida, Hiromichi Nakazato, Kazuya Yuasa +1
A qubit (a spin-1/2 particle) prepared in the up state is scattered by local spin-flipping potentials produced by the two target qubits (two fixed spins), both prepared in the down…