Muhammad Taufiqi
@its.ac.id
Scopus Publications
Scholar Citations
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Scopus Publications
Muhammad Taufiqi, Agus Purwanto, Bintoro Anang Subagyo, and Dwi Januriyanto
Springer Science and Business Media LLC
Ananto Ari Prabowo, Muhammad Taufiqi, and Bayu Dwi Hatmoko
IOP Publishing
Abstract This study investigates the effect of noise on two-qubit quantum teleportation through a four-qubit entangled channel theoretically. Therefore, in this study a comparison of two states of teleportation through ideal and noisy channel was carried out. The noisy channel can have the effect of bit-flip channel and phase-flip channel. From these two effects, it is found that the channel transforms in-to a mixed state. If the noise is neglected, the channel is pure state. Then, this channel is measured and fidelity is calculated. The fidelity of an ideal environment is 1. This indicates that the teleportation was successfully sent and at the same time confirms the teleportation behavior under ideal conditions. In noisy environments, fidelity can be less than 1. Two factors in noisy environment that affect fidelity are noise factor (p) and the orginal parameter states (transmission coefficients). In this calculation, for the bit flip noise, we observed that as the values of the coefficient values of transmitted state increase, the fidelity value increases. Meanwhile, for the phase flip noise, we observed that as the values of the coefficient values of transmitted state increase, the fidelity value decreases.
Muhammad Taufiqi, Agus Purwanto, Bintoro Anang Subagyo, and Bayu Dwi Hatmoko
Springer Science and Business Media LLC
Muhammad Taufiqi, Lila Yuwana, Agus Purwanto, Sithi Vinayakam Muniandy, Eny Latifah, Heru Sukamto, and Bintoro Anang Subagyo
IOP Publishing
Abstract We evaluate a one-way, bidirectional, and cyclic quantum controlled teleportation with two controllers. We show that the controllers’ agreement mimics the OR logic gate, i.e., the teleportation succeeds with only one of the controllers’ cooperation, and it does not matter which one. This result is generalized to multi-way quantum controlled teleportation with N controllers. The proposed protocols are evaluated by considering a noisy environment in the form of phase-damping noise and amplitude-damping noise and the dependence of fidelity only on the decoherence rate and the initial state’s amplitude parameter were established. It is interesting to note that for the phase-damping noise case, there are states with perfect fidelity (and the entropy equal to zero) even in a noisy environment. We discuss the novelty of the proposed protocols and highlight that they can be useful if the information to be teleported needs an OR-logic-gate-like controllers’ agreement combination, which cannot be done with other existing protocols.
Muhammad Taufiqi, Agus Purwanto, Bintoro Anang Subagyo, and Rafika Rahmawati
AIP Publishing
Muhammad Taufiqi, Agus Purwanto, Bintoro Anang Subagyo, and Rafika Rahmawati
Springer Science and Business Media LLC
Rafika Rahmawati, Agus Purwanto, Bintoro Anang Subagyo, Muhammad Taufiqi, and Bayu Dwi Hatmoko
Springer Science and Business Media LLC