July 2025
Intermediate to advanced
416 pages
12h 1m
English
book
Quantum Optics Devices on a Chip
by Inamuddin, Tariq Altalhi, Naif Ahmed Alshehri, Jorddy Neves Cruz
Content preview from Quantum Optics Devices on a Chip
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1Quantum-Limited Microwave Amplifiers
Dnyandeo Pawar1*, Bhaskara Rao2, Ajay Kumar3, Rajesh Kanawade3 and Arul Kashmir Arulraj1
1Centre for Materials for Electronics Technology (C-MET), Thrissur, Kerala, India
2Departamento de Física, Facultad de Ciencias Naturales Matemática Y del Medio Ambiente, Universidad Tecnológica Metropolitana, Santiago, Chile
3Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, India
Abstract
Weak microwave signals and their amplification are gaining a great interest for numerous applications, especially in quantum-based applications. Lowest possible noise is ideal for quantum technologies. At present, quantum-limited microwave amplification is done through various types of amplifiers such as high-electron mobility transistors (HEMT), superconductor-based amplifiers, and MASER (microwave amplification by stimulated emission of radiation)-based amplifiers. Each technique has its unique advantages and limitations. In this chapter, current progress related to quantum-limited microwave amplifier, types of amplifiers, designs and structures, advantages and limitations, and future development are discussed.
Keywords: Amplifiers, qubit, resonators, microwave amplification, microwave photon, superconductor, Josephson junction
1.1 Introduction
At present, detection and amplification of very weak microwave signals are attaining an interest for various quantum-based applications such as RADAR, space technology, communication, ...
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