Quantum-dot Cellular Automata: An Efficient and Adroit Alternate to CMOS Technology

Riyaz, Sadat; Kakkar, Vipan

doi:10.1109/esci48226.2020.9167618

Cited by 3 publications

(3 citation statements)

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“…The third phase, also known as the release state, is characterized by the lowering of the barrier and allowing the cells to enter an internal polarisation stage. Lastly in the fourth phase, known as the relax state, the potential barrier is low and the QCA cell retains its unpolarised condition [7].…”

Section: Qca Basic Conceptsmentioning

confidence: 99%

“…The two-bit logical AND and OR operations can be designed by simply adjusting the polarisation of any one input of MV gate to -1 (binary '0') or 1 (binary '1') as illustrated in Fig. 6 [7]. The yellow cell indicates the fixed polarisation cell.…”

Section: Qca Basic Conceptsmentioning

confidence: 99%

“…Carry − out = AB + BC in + AC in (7) In this, a novel QCA-based FA is introduced with P, Q, and R as inputs and outputs X and CY as sum and carry-out respectively. The QCA FA design approach is as illustrated in Fig.…”

Section: Full Addermentioning

confidence: 99%

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A Novel Cost-efficient Parallel Binary Adder without Crossover in QCA with Energy Dissipation Analysis

Chugh

Singh

2023

Preprint

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Quantum dot cellular automata(QCA) is a computational paradigm which uses tiny semiconductor crystals as the basic units of information in computer circuits that can be used to process information similar to transistors. This work introduces a novel half-adder design in single-layer using 90◦ cells in a single clock zone. Moreover, a full adder circuit using 37 cells in one layer with 0.5 latency is proposed which further forms the basis of a nano-scale parallel binary adder(RCA) design in QCADesigner v2.0.3. The proposed 4-bit design uses 174 cells without the use of any cross-wiring with a latency of only 1 clock. The detailed energy dissipation study of the circuits is also investigated for different tunneling energies using the QCAPro tool. The comparison results of the adder circuits in respect of quantum cost, latency, cell count and total average energy dissipation show significant improvement as compared to the latest QCA-based adder designs.

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Section: Qca Basic Conceptsmentioning

confidence: 99%

Section: Qca Basic Conceptsmentioning

confidence: 99%