Direct measurement of concurrence for atomic two-qubit pure states

G. Romero; C. E. López; F. Lastra; E. Solano; J. C. Retamal

Direct measurement of concurrence for atomic two-qubit pure states

G. Romero
, C. E. López
, F. Lastra
, E. Solano
, J. C. Retamal

Universidad de Santiago de Chile
Ludwig-Maximilians-Universität München
Pontificia Universidad Católica del Perú

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

49 Citas (Scopus)

Resumen

We propose a general scheme to measure the concurrence of an arbitrary two-qubit pure state in atomic systems. The protocol is based on one- and two-qubit operations acting on two available copies of the bipartite system, and followed by a global qubit readout. We show that it is possible to encode the concurrence in the probability of finding all atomic qubits in the ground state. Two possible scenarios are considered: atoms crossing three-dimensional microwave cavities and trapped ion systems. © 2007 The American Physical Society.

Idioma original	Español
Publicación	Physical Review A: atomic, molecular, and optical physics
Volumen	75
Estado	Publicada - 5 mar. 2007
Publicado de forma externa	Sí

Citar esto

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abstract = "We propose a general scheme to measure the concurrence of an arbitrary two-qubit pure state in atomic systems. The protocol is based on one- and two-qubit operations acting on two available copies of the bipartite system, and followed by a global qubit readout. We show that it is possible to encode the concurrence in the probability of finding all atomic qubits in the ground state. Two possible scenarios are considered: atoms crossing three-dimensional microwave cavities and trapped ion systems. {\textcopyright} 2007 The American Physical Society.",

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T1 - Direct measurement of concurrence for atomic two-qubit pure states

AU - Romero, G.

AU - López, C. E.

AU - Lastra, F.

AU - Solano, E.

AU - Retamal, J. C.

PY - 2007/3/5

Y1 - 2007/3/5

N2 - We propose a general scheme to measure the concurrence of an arbitrary two-qubit pure state in atomic systems. The protocol is based on one- and two-qubit operations acting on two available copies of the bipartite system, and followed by a global qubit readout. We show that it is possible to encode the concurrence in the probability of finding all atomic qubits in the ground state. Two possible scenarios are considered: atoms crossing three-dimensional microwave cavities and trapped ion systems. © 2007 The American Physical Society.

AB - We propose a general scheme to measure the concurrence of an arbitrary two-qubit pure state in atomic systems. The protocol is based on one- and two-qubit operations acting on two available copies of the bipartite system, and followed by a global qubit readout. We show that it is possible to encode the concurrence in the probability of finding all atomic qubits in the ground state. Two possible scenarios are considered: atoms crossing three-dimensional microwave cavities and trapped ion systems. © 2007 The American Physical Society.

M3 - Artículo

SN - 2469-9926

VL - 75

JO - Physical Review A: atomic, molecular, and optical physics

JF - Physical Review A: atomic, molecular, and optical physics

ER -