Efficient Design of Reversible Sequential Circuit

Mamun, Md. Selim Al

doi:10.9790/0661-0564247

Cited by 8 publications

(2 citation statements)

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“…In order to estimate complexity, we compute quantum cost and quantum bits. Quantum cost is computed as the number of 1 × 1 and 2 × 2 quantum gates required in the circuit, i.e., we assume that the quantum cost of all 1 × 1 and 2 × 2 quantum circuits is the same [ 36 ]. For finding the quantum cost of TC, the TC state is prepared using state vector notation and then decomposing it into quantum circuits by using Qiskit [ 37 ].…”

Section: Illustrative Resultsmentioning

confidence: 99%

Investigating Imperfect Cloning for Extending Quantum Communication Capabilities

Iqbal,

Velasco,

Costa

et al. 2023

Sensors

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Quantum computing allows the implementation of powerful algorithms with enormous computing capabilities and promises a secure quantum Internet. Despite the advantages brought by quantum communication, certain communication paradigms are impossible or cannot be completely implemented due to the no-cloning theorem. Qubit retransmission for reliable communications and point-to-multipoint quantum communication (QP2MP) are among them. In this paper, we investigate whether a Universal Quantum Copying Machine (UQCM) generating imperfect copies of qubits can help. Specifically, we propose the Quantum Automatic Repeat Request (QARQ) protocol, which is based on its classical variant, as well as to perform QP2MP communication using imperfect clones. Note that the availability of these protocols might foster the development of new distributed quantum computing applications. As current quantum devices are noisy and they decohere qubits, we analyze these two protocols under the presence of various sources of noise. Three major quantum technologies are studied for these protocols: direct transmission (DT), teleportation (TP), and telecloning (TC). The Nitrogen-Vacancy (NV) center platform is used to create simulation models. Results show that TC outperforms TP and DT in terms of fidelity in both QARQ and QP2MP, although it is the most complex one in terms of quantum cost. A numerical study shows that the QARQ protocol significantly improves qubit recovery and that creating more clones does not always improve qubit recovery.

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Section: Illustrative Resultsmentioning

confidence: 99%

Investigating Imperfect Cloning for Extending Quantum Communication Capabilities

Iqbal,

Velasco,

Costa

et al. 2023

Sensors

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“…In 2014 Mamun , et al [17] first proposed a reversible Mamun gate (MG1) gate and then designed a reversible D latch with GC, CI equal to 1 and GO equal to 2. Also, they proposed a reversible Mamun gate (MG2) and then designed a reversible J‐K latch using one MG1 and one MG2, with GC and CI equal to 2 and GO equal to 3.…”

Section: Introductionmentioning

confidence: 99%

Efficient designs of reversible latches with low quantum cost

Noorallahzadeh

Mosleh

2019

IET Circuits, Devices & Systems

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Reversible computing is one of the most promising technologies in the design of low-power digital circuits, optical information processing, quantum computing, DNA computing, digital signal processing, and nanotechnology. The main purpose of the design of reversible circuits is to reduce the energy consumption that occurs due to the loss of input bits in irreversible circuits. A gate/block is reversible if the number of inputs and the number of outputs are equal and there is one-to-one correspondence between them. Latches are considered as one of the most important digital structures that are widely used as building blocks in the design of sequential circuits. Here, eight new reversible blocks are first offered. Then using some of them, several effective designs of reversible D, T, and J-K latches are proposed. The results of the evaluations indicate that the proposed latches are superior in terms of quantum cost (QC) than previous designs. Moreover, they are very close to or better than the best previous designs in terms of criteria such as gate count (GC), constant inputs (CI), and garbage outputs (GO).

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