An Optical System Defies Conventional Band Theory
June 10, 2021•
Physics 14, s70
Squeezed wave functions reshape an open quantum system’s bulk-boundary properties and generate a new class of parity-time symmetry.
L. Xiao
L. Xiao
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Quantum systems that obey parity-time symmetry exhibit “exceptional points” within their parameter space. In quantum optical systems, these are points where a light beam’s energy gains and losses are perfectly balanced, leading to rich critical phenomena, such as extreme sensitivity to external parameters. Parity-time symmetry can be engineered into systems via designs that ensure a balance of inward and outward energy flows (see Viewpoint:
PT Symmetry Goes Quantum). Now, Lei Xiao, at Beijing Computational Science Research Center, and colleagues demonstrate a new way to produce both parity-time symmetry and exceptional points in a quantum-optical circuit. Their study could allow tools for tuning exotic behavior in photonic, phon
Indian engineering student gets 25 international research offers Friday, April 2, 2021 IWK Bureau
The Covid pandemic has affected education all over the globe, but in midst of all this disruption, an Indian mechanical engineering student has drawn over two dozen research offers in both sciences and mathematics from top institutions in the US, the UK, Europe and elsewhere.
This is apart from the offers from leading Indian institutions, with many of which he has already collaborated on several key projects.
It is a rarity for students to receive research offers in both sciences and mathematics, but Abhishek Agrahari, 21, is one of the ones to qualify in this regard.
Extension specialistsâ workloads monitored
A newly signed law requires the University of Wisconsin Board of Regents and UW-Madison chancellor to develop policies to monitor and report on Extension and outreach workloads of specialists funded by the UW-Division of Extension. The measure pertains to Extension-funded faculty and staff who work in applied agriculture at UW-Platteville, UW-River Falls, UW-Stevens Point, or UW-Madisonâs College of Agricultural and Life Sciences.
âOur state specialists are doing amazing work on the ground and in their communities, helping farmers adapt and grow their businesses and supporting the agricultural industry that is the backbone of our state,â said Wisconsin Gov. Tony Evers. âIâm glad to sign this bill so they can continue doing their good work and be recognized for going above and beyond for our farmers and our state.â
Indian engineering student gets 25 international research offers
By IANS |
Published on
Thu, Apr 1 2021 18:27 IST |
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Job. (File Photo: IANS). Image Source: IANS News
New Delhi, April 1 : The Covid pandemic has affected education all over the globe, but in midst of all this disruption, an Indian mechanical engineering student has drawn over two dozen research offers in both sciences and mathematics from top institutions in the US, the UK, Europe and elsewhere.
This is apart from the offers from leading Indian institutions, with many of which he has already collaborated on several key projects.
It is a rarity for students to receive research offers in both sciences and mathematics, but Abhishek Agrahari, 21, is one of the ones to qualify in this regard.
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