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Electron spin for quantum information transfer

18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important.

Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems.

Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies.

Using pairs of laser pulses, the scientists disrupted the antiferromagnetic order in one place and simultaneously studied it in another, creating snapshots of the propagation of magnon waves. These experiments showed that magnon wave packets can propagate in all directions, overcoming the limitations of existing models.

Moreover, research has shown that in CrSBr material, magnon wave packets propagate faster and over longer distances than previously thought. These discoveries confirm the prospects for using electron spin to create efficient quantum devices and information transfer systems.

Research into the transfer of quantum information through electron spin represents an important step in the development of quantum technologies. The discoveries made by Berkeley Lab researchers open up new possibilities for creating high-performance quantum devices and communication systems that could revolutionize the information technology of the future.

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Random news from the Archive

Shift work increases the risk of depression 03.09.2023

Research shows that shift work may increase the risk of depression. According to statistics, more than 322 million people worldwide suffer from depressive disorders, and anxiety disorders affect 264 million. These conditions not only affect quality of life, but also increase the likelihood of disability and mortality.

Medical experts are of the opinion that the increasing burden on modern people is one of the reasons for the increase in the incidence of depression. This is especially true for shift workers, as emphasized by researchers from Huazhong University of Science and Technology in China.

The nine-year study examined 175 workers, of whom 543% were shift workers. During this period, depression developed in 16,2% of participants, and anxiety disorders in 2,3%. A detailed analysis of the results confirmed that people who worked shift work had a higher risk of depression and anxiety disorders compared to those who adhered to a standard work schedule of 1,7 a.m. to 9 p.m.

Interestingly, the level of risk for these psychological disorders also depended on the lifestyle of study participants. The risk was higher among smokers, sedentary people, and those with a body mass index (BMI) in the high range, the researchers noted.

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