13 research outputs found
Is there a Moore's law for quantum computing?
There is a common wisdom according to which many technologies can progress
according to some exponential law like the empirical Moore's law that was
validated for over half a century with the growth of transistors number in
chipsets. As a still in the making technology with a lot of potential promises,
quantum computing is supposed to follow the pack and grow inexorably to
maturity. The Holy Grail in that domain is a large quantum computer with
thousands of errors corrected logical qubits made themselves of thousands, if
not more, of physical qubits. These would enable molecular simulations as well
as factoring 2048 RSA bit keys among other use cases taken from the intractable
classical computing problems book. How far are we from this? Less than 15 years
according to many predictions. We will see in this paper that Moore's empirical
law cannot easily be translated to an equivalent in quantum computing. Qubits
have various figures of merit that won't progress magically thanks to some new
manufacturing technique capacity. However, some equivalents of Moore's law may
be at play inside and outside the quantum realm like with quantum computers
enabling technologies, cryogeny and control electronics. Algorithms, software
tools and engineering also play a key role as enablers of quantum computing
progress. While much of quantum computing future outcomes depends on qubit
fidelities, it is progressing rather slowly, particularly at scale. We will
finally see that other figures of merit will come into play and potentially
change the landscape like the quality of computed results and the energetics of
quantum computing. Although scientific and technological in nature, this
inventory has broad business implications, on investment, education and
cybersecurity related decision-making processes.Comment: 32 pages, 24 figure
Understanding Quantum Technologies 2022
Understanding Quantum Technologies 2022 is a creative-commons ebook that
provides a unique 360 degrees overview of quantum technologies from science and
technology to geopolitical and societal issues. It covers quantum physics
history, quantum physics 101, gate-based quantum computing, quantum computing
engineering (including quantum error corrections and quantum computing
energetics), quantum computing hardware (all qubit types, including quantum
annealing and quantum simulation paradigms, history, science, research,
implementation and vendors), quantum enabling technologies (cryogenics, control
electronics, photonics, components fabs, raw materials), quantum computing
algorithms, software development tools and use cases, unconventional computing
(potential alternatives to quantum and classical computing), quantum
telecommunications and cryptography, quantum sensing, quantum technologies
around the world, quantum technologies societal impact and even quantum fake
sciences. The main audience are computer science engineers, developers and IT
specialists as well as quantum scientists and students who want to acquire a
global view of how quantum technologies work, and particularly quantum
computing. This version is an extensive update to the 2021 edition published in
October 2021.Comment: 1132 pages, 920 figures, Letter forma
Online learning of physics during a pandemic: A report from an academic experience in Italy
The arrival of the Sars-Cov II has opened a new window on teaching physics in academia.
Frontal lectures have left space for online teaching, teachers have been faced with a new way
of spreading knowledge, adapting contents and modalities of their courses. Students have
faced up with a new way of learning physics, which relies on free access to materials and
their informatics knowledge. We decided to investigate how online didactics has influenced
students’ assessments, motivation, and satisfaction in learning physics during the pandemic
in 2020. The research has involved bachelor (n = 53) and master (n = 27) students of
the Physics Department at the University of Cagliari (N = 80, 47 male; 33 female). The
MANOVA supported significant mean differences about gender and university level with
higher values for girls and master students in almost all variables investigated. The path
analysis showed that student-student, student-teacher interaction, and the organization of
the courses significantly influenced satisfaction and motivation in learning physics. The
results of this study can be used to improve the standards of teaching in physics at the
University of Cagliar
Mapping scientific applications on a large-scale data-path accelerator implemented by single-flux quantum (SFQ) circuits
Abstract — To overcome issues originating from the CMOS technology, a large-scale reconfigurable data-path (LSRDP) processor based on single-flux quantum circuits is introduced. LSRDP is augmented to a general purpose processor to accelerate the execution of data flow graphs (DFGs) extracted from scientific applications. Procedure of mapping large DFGs onto the LSRDP is discussed and our proposed techniques for reducing area of the accelerator within the design procedure will be introduced as well. Keywords- Reconfigurable accelerator; single-flux quantum circuit; data flow graph; placement and routing I
Mapping Scientific Applications on a Large-Scale Data-Path Accelerator Implemented by Single-Flux Quantum (SFQ) Circuits
Design, Automation & Test in Europe : 8-12 March, 2010 : Dresden, GermanyTo overcome issues originating from the CMOS technology, a large-scale reconfigurable data-path (LSRDP) processor based on single-flux quantum circuits is introduced. LSRDP is augmented to a general purpose processor to accelerate the execution of data flow graphs (DFGs) extracted from scientific applications. Procedure of mapping large DFGs onto the LSRDP is discussed and our proposed techniques for reducing area of the accelerator within the design procedure will be introduced as well
Mapping Scientific Applications on a Large-Scale Data-Path Accelerator Implemented by Single-Flux Quantum (SFQ) Circuits
To overcome issues originating from the CMOS technology, a large-scale reconfigurable data-path (LSRDP) processor based on single-flux quantum circuits is introduced. LSRDP is augmented to a general purpose processor to accelerate the execution of data flow graphs (DFGs) extracted from scientific applications. Procedure of mapping large DFGs onto the LSRDP is discussed and our proposed techniques for reducing area of the accelerator within the design procedure will be introduced as well.Design, Automation & Test in Europe : 8-12 March, 2010 : Dresden, German
Mapping Scientific Applications on a Large-Scale Data-Path Accelerator Implemented by Single-Flux Quantum (SFQ) Circuits
Design, Automation & Test in Europe : 8-12 March, 2010 : Dresden, GermanyTo overcome issues originating from the CMOS technology, a large-scale reconfigurable data-path (LSRDP) processor based on single-flux quantum circuits is introduced. LSRDP is augmented to a general purpose processor to accelerate the execution of data flow graphs (DFGs) extracted from scientific applications. Procedure of mapping large DFGs onto the LSRDP is discussed and our proposed techniques for reducing area of the accelerator within the design procedure will be introduced as well
References, Appendices & All Parts Merged
Includes: Appendix MA: Selected Mathematical Formulas; Appendix CA: Selected Physical Constants; References; EGP merged file (all parts, appendices, and references)https://commons.library.stonybrook.edu/egp/1007/thumbnail.jp