Category: quantum physics – Page 553
Quantum physics offers insights about leadership in the 21st century
According to complexity economist Brian Arthur and physicist Geoffrey West human social systems function optimally as complex adaptive systems – or quantum systems.
The newly developed field of quantum leadership maps the human, conscious equivalents onto the 12 systems that define complex adaptive systems or quantum organisations. These are: self-awareness; vision and value led; spontaneity; holism; field-independence; humility; ability to reframe; asking fundamental questions; celebration of diversity; positive use of adversity; compassion; a sense of vocation (purpose).
Quantum leadership is essentially a new management approach that integrates the most effective attributes of traditional leadership with recent advances in both quantum physics and neuroscience. It is a model that allows for greater responsiveness. It draws on our innate ability to recognise, adapt and respond to uncertainty and complexity.
Puzzling Quantum Scenario Appears Not to Conserve Energy
THE #QUANTUM #PHYSICISTS Sandu Popescu, Yakir Aharonov and Daniel Rohrlich have been troubled by the same scenario for three decades.
It started when they wrote about a surprising #wave #phenomenon called #superoscillation in 1990. “We were never able to really tell what exactly was bothering us,” said Popescu, a professor at the University of Bristol. “Since then, every year we come back and we see it from a different angle.”
Finally, in December 2020, the trio published a paper in the Proceedings of the National Academy of Sciences explaining what the problem is: In #quantumsystems, superoscillation appears to violate the law of conservation of #energy. This law, which states that the energy of an isolated system never changes, is more than a bedrock physical principle. It’s now understood to be an expression of the fundamental symmetries of the universe—a “very important part of the edifice of physics,” said Chiara Marletto, a physicist at the University of Oxford.
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By resolving a paradox about light in a box, researchers hope to clarify the concept of energy in quantum theory.
Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture
Circa 2021
Perovskite quantum dots film has better mechanical stability and structural integrity compared to bulk thin film. Here, the authors demonstrate higher endurance of quantum dot films and develop hybrid CsPbI3 QD/PCBM device with PCE of 15.1% and 12.3% on rigid and flexible substrates, respectively.