07/10/2025
Congratulations to all
BREAKING NEWS
The Royal Swedish Academy of Sciences has decided to award the 2025 in Physics to John Clarke, Michel H. Devoret and John M. Martinis “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
This year’s physics laureates’ experiments on a chip revealed quantum physics in action.
A major question in physics is the maximum size of a system that can demonstrate quantum mechanical effects. The 2025 physics laureates conducted experiments with an electrical circuit in which they demonstrated both quantum mechanical tunnelling and quantised energy levels in a system big enough to be held in the hand.
Quantum mechanics allows a particle to move straight through a barrier, using a process called tunnelling. As soon as large numbers of particles are involved, quantum mechanical effects usually become insignificant. The laureates’ experiments demonstrated that quantum mechanical properties can be made concrete on a macroscopic scale.
In 1984 and 1985, John Clarke, Michel H. Devoret and John M. Martinis conducted a series of experiments with an electronic circuit built of superconductors, components that can conduct a current with no electrical resistance. In the circuit, the superconducting components were separated by a thin layer of non-conductive material, a setup known as a Josephson junction. By refining and measuring all the various properties of their circuit, they were able to control and explore the phenomena that arose when they passed a current through it. Together, the charged particles moving through the superconductor comprised a system that behaved as if they were a single particle that filled the entire circuit.
This macroscopic particle-like system is initially in a state in which current flows without any voltage. The system is trapped in this state, as if behind a barrier that it cannot cross. In the experiment the system shows its quantum character by managing to escape the zero-voltage state through tunnelling. The system’s changed state is detected through the appearance of a voltage.
The laureates could also demonstrate that the system behaves in the manner predicted by quantum mechanics – it is quantised, meaning that it only absorbs or emits specific amounts of energy.
The transistors in computer microchips are one example of the established quantum technology that surrounds us. This year’s Nobel Prize in Physics has provided opportunities for developing the next generation of quantum technology, including quantum cryptography, quantum computers, and quantum sensors.
Learn more
Press release: https://bit.ly/42jAlZg
Popular information: https://bit.ly/4gKFvTX
Advanced information: https://bit.ly/48CSBjZ
08/10/2024
https://www.facebook.com/100064555159421/posts/927728006055696/?mibextid=rS40aB7S9Ucbxw6v
BREAKING NEWS
The Royal Swedish Academy of Sciences has decided to award the 2024 Nobel Prize in Physics to John J. Hopfield and Geoffrey E. Hinton “for foundational discoveries and inventions that enable machine learning with artificial neural networks.”
This year’s two Nobel Prize laureates in physics have used tools from physics to develop methods that are the foundation of today’s powerful machine learning. John Hopfield created an associative memory that can store and reconstruct images and other types of patterns in data. Geoffrey Hinton invented a method that can autonomously find properties in data, and so perform tasks such as identifying specific elements in pictures.
Learn more
Press release: https://bit.ly/4diXSfz
Popular information: https://bit.ly/4gK57jl
Advanced information: https://bit.ly/4egLrly
03/01/2024
Anyone interested???
Grab the opportunity.
https://www.rtsti.com/?fbclid=IwAR3ZQjIGNSNVKJwNXdY2giVPLLSz128N754Mlp7V1NjKrVtsZpOZSPk13Qk
Home | rtsti2024
The RTSTI Conference, hosted by the Institute of Forestry, Pokhara campus in Pokhara, aims to bring together academics, scientists, researchers, scholars, and students to share research findings in diverse fields such as Physical Sciences, Mathematics, Statistics, Biological Sciences, Engineering, H...
09/12/2023
New planets discovered....
अन्तरिक्षमा फेला परे ६ ‘अद्भुत ग्रह’
एकछिन सोचौं त, ‘ब्रह्माण्डमा पृथ्वीजस्तै ग्रह फेला परे के होला ?’ हामी कल्पना
15/11/2023
A readworthy success story
Physics Without Frontiers Success Story | ICTP
ICTP’s Physics Without Frontiers (PWF) initiative is a global endeavor dedicated to inspiring, educating, and empowering university students in physics and mathematics, particularly in regions where the development of science and technology may still be in its early stages. PWF operates at the int...
15/10/2023
Some facts and views on Nobel Prize
Remembering 2023
From short pulses of light to innovative plays and prose. From quantum dots to fighting against the oppression of women in Iran. From effective mRNA vaccines to new insights into women’s roles in the labour market.
This year's Nobel Prizes have awarded discoveries and achievements that have benefitted humankind in a myriad of ways. See the full list and discover more about the 2023 Nobel Prizes at nobelprize.org.
17/08/2023
Dear all valued members,
Good morning.
The following presentation in the NPS Monthly Talk Series will be given by Dr. Rudra Kafle, a life member of the society and an emerging Nepalese physicist currently working at Worcester Polytechnic Institute (WPI) in the United States. His topic will be "Designing and Implementing Interactive Multimedia in Teaching Physics Concepts."
This talk will have a great impact on teaching physics at different levels; please do not miss the opportunity.
We cordially invite everyone. Date: 18th August 2023 (1st Bhadra, 2080)
Time: 7:00 pm-8:00 pm
This talk will be in online mode.
Abstract:
Multimedia communication refers to more than one medium of communication. For example, if we consider a textbook, it has some text at a minimum. It may also have pictures, graphs, tables of data, and so on. In the modern era of digital technology, its span has widened to audio and video recordings and even interactive animations. We have been using interactive multimedia in teaching physics concepts in college physics courses. In this talk, I will briefly present Mayer’s cognitive theory of multimedia learning, designing effective multimedia instructional materials, and student perceptions of such interactive multimedia in learning physics concepts.
Bio-sketch
Dr. Rudra Kafle is an Associate Professor of Teaching in the Department of Physics at Worcester Polytechnic Institute (WPI). He earned his PhD in Physics from WPI in 2012, focusing on Bose-Einstein condensate-based atom interferometers and gyroscopes (theoretical atomic physics). He completed his three-year long postdoctoral research in DNA mechanics (theoretical and experimental biophysics) at the University of Michigan Ann Arbor. Currently, his activities are focused on innovative teaching, Scholarship of Teaching and Learning (SoTL), and Physics Education Research (PER).
: Nepal Physical Society
08/08/2023
Game of probability 👌
From the Mind-Blown department of the Universe…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
In a deck of 52 playing cards, the total number of possible shuffles is Astronomical:
⠀⠀⠀⠀⠀⠀⠀⠀⠀
** If a trillion people each shuffled a deck of cards a trillion times per second…
** And they each did this for a trillion years…
** And it occurred in a trillion civilizations across our universe….
** And that played out in a trillion universes across the multiverse…
⠀⠀⠀⠀⠀⠀⠀⠀⠀
On your next shuffle, only then is there a nearly even chance your deck will match any previously shuffled deck.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Which means any time you fully shuffle a deck of cards, it’s not likely to match any deck that has ever been shuffled before.
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Just Sayin'.
26/07/2023
Robert J Openheimar, भागवत गीता र परमाणु बम
ओपनहाइमर: अणुबम बनाउने यी वैज्ञानिक जो गीता र पूर्वीय दर्शनबाट निकै प्रभावित थिए - BBC News नेपाली
जीवनीकारहरूका अनुसार ओपनहाइमरका धेरै साथीहरूले संस्कृत भाषाप्रतिको उनको रुचिलाई अस्वाभाविक मानेका थिए।
30/01/2024
15/11/2023
15/10/2023
20/08/2023
17/08/2023
08/08/2023
26/07/2023