Probabilistic remote preparation of a two-atom entangled state

Zhang, Ying-Qiao; Jin, Xing-Ri; Zhang, Shou

doi:10.1088/1009-1963/14/9/008

Cited by 23 publications

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“…where the qubits q 1 and q 3 are entangled. This state can be prepared experimentally via entanglement swapping [45][46][47].…”

Section: Quantum Dense Coding In the Arraymentioning

confidence: 99%

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Scheme for realizing quantum dense coding via entanglement swapping

Meher¹

2020

J. Phys. B: At. Mol. Opt. Phys.

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Quantum dense coding is a protocol for transmitting two classical bits of information from a sender (Alice) to a remote receiver (Bob) by sending only one quantum bit (qubit). In this article, we propose an experimentally feasible scheme to realize quantum dense coding via entanglement swapping in a cavity array containing a certain number of two-level atoms. Proper choice of system parameters such as atom–cavity and inter-cavity couplings allows perfect transfer of information. A high fidelity transfer of information is shown to be possible by using recently achieved experimental values in the context of photonic crystal cavities and superconducting resonators. To mimic experimental imperfections, disorder in both the coupling strengths and resonance frequencies is considered.

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“…where the qubits q 1 and q 3 are entangled. This state can be prepared experimentally via entanglement swapping [45][46][47].…”

Section: Quantum Dense Coding In the Arraymentioning

confidence: 99%

“…At this point, Alice's and Bob's qubits are disentangled whereas Bob's qubits are entangled. This is referred to as entanglement swapping in the literature [45][46][47]. Here the cavity array acts as a quantum channel and the photon as the information carrier.…”

Section: Introductionmentioning

confidence: 99%

Scheme for realizing quantum dense coding via entanglement swapping

Meher¹

2020

J. Phys. B: At. Mol. Opt. Phys.

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“…where the qubits q 1 and q 3 are entangled. This state can be prepared experimentally via entanglement swapping [45,46,47]. In order to encode the two classical bits in a single qubit, Alice applies unitary operation on her qubit depending on the choice of the classical bits.…”

Section: Quantum Dense Coding In the Arraymentioning

confidence: 99%

“…At this point, Alice's and Bob's qubits are disentangled where as Bob's qubits are entangled. This is referred to as entanglement swapping in the literature [45,46,47]. Here the cavity array acts as a quantum channel and photon as the information carrier.…”

Section: Introductionmentioning

confidence: 99%

Scheme for realizing quantum dense coding via entanglement swapping

Meher

2020

Preprint

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Quantum dense coding is a protocol for transmitting two classical bits of information from a sender (Alice) to a remote receiver (Bob) by sending only one quantum bit (qubit). In this article, we propose an experimentally feasible scheme to realize quantum dense coding via entanglement swapping in a cavity array containing a certain number of two-level atoms. Proper choice of system parameters such as atomcavity couplings and inter-cavity couplings allows perfect transfer of information. A high fidelity transfer of information is shown to be possible by using recently achieved experimental values in the context of photonic crystal cavities and superconducting resonators. To mimic experimental imperfections, disorder in both the coupling strengths and resonance frequencies is considered.

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Controlled Remote Preparation of a Two-Qubit State via Positive Operator-Valued Measure and Two Three-Qubit Entanglements

Song

Wang

2011

Int J Theor Phys

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Utilizing a proper positive operator-valued measure (POVM) instead of usual projective measurement, we present a new scheme for remote preparation of a general two-qubit state in either distant ministrant's place. In the scheme, we exploit a GHZ-type state and a W-type state as the shared quantum channel, and the remote two-qubit preparation can be realized in a probabilistic manner via two ministrants' collaboration. Furthermore, we also explore the scheme's applications to some special ensembles of states in detail. The success probabilities in different cases are calculated, respectively, which show that the remote preparation can be achieved with higher probability provided that the prepared state belongs to the special ensembles.

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Probabilistic remote preparation of a two-atom entangled state

Cited by 23 publications

References 0 publications

Scheme for realizing quantum dense coding via entanglement swapping

Scheme for realizing quantum dense coding via entanglement swapping

Scheme for realizing quantum dense coding via entanglement swapping

Controlled Remote Preparation of a Two-Qubit State via Positive Operator-Valued Measure and Two Three-Qubit Entanglements

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