Today, the use of CMOS technology for the manufacture of electronic ICs has faced many limitations. Many alternatives to CMOS technology are offered and made every day. Quantum-dot cellular automata (QCA) is one of the most widely used. QCA gates and circuits have many advantages including small size, low power consumption and high speed. On the other hand, using special digital gates called re...

This paper describes the development of an Advanced Research Integrated Avionics (ARIA) system for a research effort at West Virginia University (WVU) focusing on the design of fault-tolerant control systems toward improving aviation safety. The system seeks to improve upon WVU’s existing avionics system by incorporating more functionality, flexibility, and computational performance while impos...

The error rate in complementary transistor circuits is suppressed exponentially in electron number, arising from an intrinsic physical implementation of fault-tolerant error correction. Contrariwise, explicit assembly of gates into the most efficient known fault-tolerant architecture is characterized by a subexponential suppression of error rate with electron number, and incurs significant over...

Abstruct Behavior of basic and complex logic gates using complementary pass-transistor logic (CPL) under various single-stuck faults are investigated. The result shows that all stuck-on faults in the basic CPL gates can be detected by current monitoring, but no logic monitoring is possible. Similarly all bridging faults between gate and source of basic CPL gates can be detected only by current ...

The quantum logic gates used in the design of a computer should be both universal, meaning arbitrary computations can performed, and fault-tolerant, keep errors from cascading out control. A number no-go theorems constrain ways which set fault-tolerant universal. These are very restrictive, conventional wisdom holds that universal gate cannot implemented natively, requiring us to use costly dis...

A novel universal and fault-tolerant basis (set of gates) for quantum computation is described. Such a set is necessary to perform quantum computation in a realistic noisy environment. The new basis consists only of two single-qubit gates (Hadamard and σ 1/4 z ), and one two-qubit gate (Controlled-NOT). Moreover, a new general method for fault-tolerant implementation of quantum gates like Toffo...

In this introductory article on the subject of quantum error correction and fault-tolerant quantum computation, we review three important ingredients that enter known constructions for fault-tolerant quantum computation, namely quantum codes, error discretization and transversal quantum gates. Taken together, they provide a ground on which the theory of quantum error correction can be developed...

One class of quantum error-correcting codes---hypergraph product codes---may offer fault tolerance with low hardware overhead. A new proposal shows how to perform universal gates these codes.