In this paper, we have designed and simulated all-optical tristate Pauli X, Y and Z gates using 2D photonic crystal. Simple line and point defects have been used to design the structure. The performance of the structu...In this paper, we have designed and simulated all-optical tristate Pauli X, Y and Z gates using 2D photonic crystal. Simple line and point defects have been used to design the structure. The performance of the structure has been analyzed and investigated by plane wave expansion(PWE) and finite difference time domain(FDTD) methods. Different performance parameters, namely contrast ratio(CR), rise time, fall time, delay time, response time and bit rate, have been calculated. The main advantage of the proposed design is that all the Pauli gates have been realized from a single structure. Due to compact size, fast response time, good CR and high bit rate, the proposed structure can be highly useful for optical computing, data processing and optical integrated circuits.展开更多
Controlled NOT(CNOT)gate is well known because of its several advantages in quantum computing and information processing.In the area of quantum computing,several methods of CNOT gates were established in last few year...Controlled NOT(CNOT)gate is well known because of its several advantages in quantum computing and information processing.In the area of quantum computing,several methods of CNOT gates were established in last few years.In this paper,we propose a new approach of implementation of tristate CNOT operation with light as information carrying signal.To do this,the frequency encoding method has been exploited for successful realization of the CNOT gate with light.展开更多
文摘In this paper, we have designed and simulated all-optical tristate Pauli X, Y and Z gates using 2D photonic crystal. Simple line and point defects have been used to design the structure. The performance of the structure has been analyzed and investigated by plane wave expansion(PWE) and finite difference time domain(FDTD) methods. Different performance parameters, namely contrast ratio(CR), rise time, fall time, delay time, response time and bit rate, have been calculated. The main advantage of the proposed design is that all the Pauli gates have been realized from a single structure. Due to compact size, fast response time, good CR and high bit rate, the proposed structure can be highly useful for optical computing, data processing and optical integrated circuits.
基金the Department of Science and Technology(Govt.of India)for providing INSPIRE fellowship to one of the authors。
文摘Controlled NOT(CNOT)gate is well known because of its several advantages in quantum computing and information processing.In the area of quantum computing,several methods of CNOT gates were established in last few years.In this paper,we propose a new approach of implementation of tristate CNOT operation with light as information carrying signal.To do this,the frequency encoding method has been exploited for successful realization of the CNOT gate with light.
