Study points to physical principles that underlie quantum Darwinism physreva
, involving especially Einstein and Bohr, did not lead to conclusive results. Most of the next generation of physicists opted for equations that derived from conflicting theoretical frameworks without worrying much about the underlying philosophical concepts. The equations"worked," and that was apparently sufficient. Various technological artifacts that are now trivial were based on practical applications of quantum theory.
This line of theoretical investigation has been taken forward, with an even greater degree of abstraction and generalization, in a paper by Brazilian physicist Roberto Baldijão published inThe paper reports findings that are part of Baldijão's Ph.D. research, supervised by Marcelo Terra Cunha, a professor in the Institute of Mathematics, Statistics and Scientific Computing at the University of Campinas in Brazil.
In conducting his investigation, he adopted a formalism known as generalized probabilistic theories ."This formalism enables us to produce mathematical descriptions of different physical theories, and hence to compare them. It also enables us to understand which theories obey certain physical principles. Quantum theory and classical theory are two examples of GPTs, but many others can also be described," he said.
"Surprisingly, the manifestation of classical behaviors via Darwinism depends on such a notably non-classical property as entanglement," he said. The experiment was supposed to show that the formalism of quantum theory was incomplete because entanglement presupposed that information traveled between the two particles at infinite speed, which was impossible according to relativity theory.
"In our study, we showed that if a GPT displays decoherence, this is because there's a transformation in the theory capable of implementing the idealized process of Darwinism we considered," Baldijão said."Similarly, if a theory has sufficient structure to allow for reversible computation—computation that can be undone—then there is also a transformation capable of implementing Darwinism. This is most interesting, considering the computational applications of GPTs.
France Dernières Nouvelles, France Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
These 2 factors may predict whether you’ll have long COVID, new study finds“If your symptoms were present at 15 weeks, they were more likely to be present a year later,” explained NBC News medical contributor Dr. Natalie Azar on TODAY Tuesday.
Lire la suite »
PTSD Symptoms Common for Family of COVID ICU Patients: StudyCOVID hardship may reach beyond the actual patient to their family, a new study finds: Family members of COVID-19 patients in intensive care may develop symptoms of anxiety, depression, and posttraumatic stress disorder.
Lire la suite »
Study finds ‘burnout epidemic’ for working women two years into pandemicFifty-three percent of women reported stress levels higher than they were a year ago as mental health declined and work-life balance became nearly nonexistent.
Lire la suite »
Big Tech censors criticism of Biden more than 600 times: StudyIn a two-year time span, Big Tech censored President Joe Biden’s critics 646 times.
Lire la suite »
Regina woman with rare Locked In Syndrome fundraising for medical study in U.S.Ann Johnson suffered a rare brain stem stroke in 2005 and is now taking part in a medical which she hopes will help others in her situation.
Lire la suite »
Legal cannabis lowers demand for prescription drugs: studyThe prescription drugs that experienced the biggest change in demand include those that target pain, depression, anxiety, sleep and psychosis.
Lire la suite »