Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Acta Sinica Quantum Optica

Schemes to Implement the Optimal Asymmetric Economical 1→2 and 1→3 Phase-Covariant Cloning in Ion-Trap System

Ye Liu

Published Jan 1, 2009• 0 citations
OpenAlex

Abstract

We propose experimentally feasible schemes to implement the optimal asymmetric economical 1→2 and 1→3 phase-covariant cloning,which work without ancilla,in the context of ion-trap system.In these schemes the collective motional mode is initially prepared in the vacuum state |0.In the first scheme,we drive the first ion with a laser beam firstly,and then we map the motional mode state to the second ion.And in the second scheme,we drive two ions with different laser beams,and then we map the motional mode state to the third one.The schemes are based on resonant sideband excitation,thus they may be realized with current ion-trap techniques.

Related papers

Implementing 1→M Phase-covariant Cloning via Preparing W State in Ion-trap System

Ai‐Dong Zhu

We present a scheme to implement 1→M phase-covariant cloning via preparing a W state in ion-trap system.In our protocol,the interactions between the N ions and the vibration mode are asymmetric.By adjusting the phases of the laser fields,a maximal fidelity can be reached.Throughout the whole procedure the vibration mode remains in the vacuum state and thus the decoherence can be suppressed effectively.

Journal of Yanbian University•Jan 1, 2009•0 citations

Implementation of two optimal symmetric economical state-dependent cloners in an ion-trap system

Gui-Yu Hu, Hong-Bo Wan, Liu Ye

We propose unified scheme to realize optimal 1→3 symmetric economical phase-covariant cloning (EPCC) and optimal 1→3 symmetric economical real state cloning (SERS) in the context of an ion-trap system. In this approach, the vibrational mode is not used to act as memory and the two cloners work without ancilla, thus it is likely to be much less sensitive to noise and decoherence. By adjusting tunable time parameters, our system can also perform optimal symmetric (asymmetric) universal quantum cloning and optimal symmetric (asymmetric) phase-covariant quantum cloning. Based on the advancement of experimental technique in an ion-trap system, the scheme is feasible and the symmetric economical state-dependent cloning is optimal.

Journal of the Optical Society of America B•Jan 22, 2010•2 citations

Scheme to Implement the Optimal Asymmetric Economical 1→3 phase-covariant Cloning in Cavity QED

Da-Rong Qiu, Wen‐Hai Zhang, Ye Liu

We propose an experimentally feasible scheme to implement the optimal asymmetric economical 1→3 phase-covariant cloning, which works without ancilla, based on cavity QED. In our scheme, two of the three atoms simultaneously interact with a cavity field and they are driven by classical fields. The scheme is insensitive to the cavity field states and the cavity decay. Therefore, it may be realized in experiment.

•Dec 25, 2008•0 citations

Scheme to implement the optimal asymmetric economical 1→3 phase-covariant cloning in cavity QED

Qiu Da

We propose an experimentally feasible scheme to implement the optimal asymmetric economical 1→3 phase-covariant cloning,which works without ancilla,based on cavity QED.In our scheme,two of the three atoms simultaneously interact with a cavity field and they are driven by classical fields.The scheme is insensitive to the cavity field states and the cavity decay.Therefore,it may be realized in experiment.

Journal of Atomic and Molecular Physics•Jan 1, 2008•0 citations

Scheme for the implementation of 1 → 3 optimal phase-covariant quantum cloning in ion-trap systems

Rong‐Can Yang, Hongcai Li, Lin Xiu +2 more

This paper proposes a scheme for the implementation of 1 → 3 optimal phase-covariant quantum cloning with trapped ions. In the present protocol, the required time for the whole procedure is short due to the resonant interaction, which is important in view of decoherence. Furthermore, the scheme is feasible based on current technologies.

Chinese Physics B•Mar 1, 2008•8 citations

REALIZATION OF A TWO-ION SWAP GATE IN THE ION-TRAP SYSTEM

Da-Rong Qiu, Liu Ye

We propose an experimentally feasible scheme for implementing a two-ion swap gate in the context of the ion-trap system. In this scheme, we drive the ion with one laser beam and we map the states of one ion and the motional mode to each other. The scheme is based on resonant sideband excitation, and thus it may be realized with current ion-trap techniques.

Modern Physics Letters B•Jul 20, 2009•1 citation
We propose experimentally feasible schemes to implement the optimal asymmetric economical 1→2 and 1→3 phase-covariant cloning,which work without ancilla,in the context of ion-trap system.In these schemes the collective motional mode is initially prepared in the vacuum state |0.In the first scheme,we drive the first ion with a laser beam firstly,and then we map the motional mode state to the second ion.And in the second scheme,we drive two ions with different laser beams,and then we map the motional mode state to the third one.The schemes are based on resonant sideband excitation,thus they may be realized with current ion-trap techniques.
We propose unified scheme to realize optimal 1→3 symmetric economical phase-covariant cloning (EPCC) and optimal 1→3 symmetric economical real state cloning (SERS) in the context of an ion-trap system. In this approach, the vibrational mode is not used to act as memory and the two cloners work without ancilla, thus it is likely to be much less sensitive to noise and decoherence. By adjusting tunable time parameters, our system can also perform optimal symmetric (asymmetric) universal quantum cloning and optimal symmetric (asymmetric) phase-covariant quantum cloning. Based on the advancement of experimental technique in an ion-trap system, the scheme is feasible and the symmetric economical state-dependent cloning is optimal.