40 years of quantum computing

Seiki Akama

Paramita Basak Upama, Md Jobair Hossain Faruk, Mohammad Taneem Bin Nazim +6 more

Quantum Computing (QC) refers to an emerging paradigm that inherits and builds with the concepts and phenomena of Quantum Mechanic (QM) with the significant potential to unlock a remarkable opportunity to solve complex and computationally intractable problems that scientists could not tackle previously. In recent years, tremendous efforts and progress in QC mark a significant milestone in solving real-world problems much more efficiently than classical computing technology. While considerable progress is being made to move quantum computing in recent years, significant research efforts need to be devoted to move this domain from an idea to a working paradigm. In this paper, we conduct a systematic survey and categorize papers, tools, frameworks, platforms that facilitate quantum computing and analyze them from an application and Quantum Computing perspective. We present quantum Computing Layers, Characteristics of Quantum Computer platforms, Circuit Simulator, Open-source Tools- Cirq, TensorFlow Quantum, ProjectQ etc. that allow implementing quantum programs in Python using a powerful and intuitive syntax. Following that, we discuss the current essence, identify open challenges, and provide future research direction. We conclude that scores of frameworks, tools and platforms are emerged in the past few years, improvement of currently available facilities would exploit the research activities in the quantum research community.

Madhusudan Singh Irish Singh, Bharat S. Rawal

Seyed M. H. Mansourbeigi, Stephen W. Clyde

Are we getting to the end of Moore's law????? Moore's law which is held for 50 years tells computer power doubling every 18 months may begin to expire in the next 10 or so years. Imagine you buy a computer having the same power as the last year and the year before last year. Would you buy a new computer? Or upgrade? The present computer model is CPU with I/O's and combination of logical gates, and software which controls these I/O's based on finite automata and Turing machine. Basically the above hard-ware software model manipulates the 0 and 1 bits.

John P. Preskill

Forty years ago, Richard Feynman proposed harnessing quantum physics to build a more powerful kind of computer. Realizing Feynman's vision is one of the grand challenges facing 21st century science and technology. In this article, we'll recall Feynman's contribution that launched the quest for a quantum computer, and assess where the field stands 40 years later.

Jeremy J. Ramsden