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quant-ph2005
Measuring the parity of an -qubit state
B. Zeng, D. L. Zhou, L. You
We present a scheme for a projective measurement of the parity operator of -qubits. Our protocol uses a single ancillary qubit, or a probe qubit, a…
quant-ph2005
Quantum information cannot be split into complementary parts
D. L. Zhou, B. Zeng, L. You
We prove a new impossibility for quantum information (the no-splitting theorem): an unknown quantum bit (qubit) cannot be split into two complementary qubits. This impossibility, t…
quant-ph2005
Entanglement and spin squeezing properties for three bosons in two modes
B. Zeng, D. L. Zhou, Z. Xu +1
We discuss the canonical form for a pure state of three identical bosons in two modes, and classify its entanglement correlation into two types, the analogous GHZ and the W types a…