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

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

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. © 2007 The American Physical Society.

Original language	Spanish
Journal	Physical Review A: atomic, molecular, and optical physics
Volume	75
State	Published - 5 Mar 2007
Externally published	Yes

Cite this

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title = "Direct measurement of concurrence for atomic two-qubit pure states",

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 -