Atomic Josephson junctions: How Bose-Einstein condensates replicate Shapiro steps
Peer-Reviewed Publication
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Updates every hour. Last Updated: 10-Jun-2026 06:15 ET (10-Jun-2026 10:15 GMT/UTC)
They enable high-precision measurements, define the unit of voltage, and form the heart of many quantum computers – the so-called Josephson junctions. However, the microscopic processes taking place in the superconductors are difficult to observe directly. Researchers at the RPTU University of Kaiserslautern-Landau have therefore implemented a quantum simulation of the Josephson effect: They separated two Bose-Einstein condensates (BECs) by means of an extremely thin optical barrier, which is generated by a focused laser beam and moved periodically. The result is impressive: even in this atomic system, the characteristic Shapiro steps – voltage plateaus at multiples of the drive frequency – appeared, as they do in superconducting Josephson junctions. The research paper published in the journal Science thus provides a textbook example of quantum simulation.
Mammograms can detect calcium in the breast’s arteries, a sign that the blood vessels are getting stiffer. New findings from a faculty member at Penn State College of Medicine revealed that the severity and progression of calcium accumulation seen on mammograms predicted future cardiovascular disease.
Concordia researchers found that AI can estimate a person’s age with up to ~96% accuracy using a 30-second ECG from a smartwatch, offering a privacy-respecting alternative to photo-based verification. The system works using only heart-signal patterns, reducing the need to store identifiable personal data.
A retrospective observational study found that valvular heart disease, detected by cardiovascular imaging, was common in patients with a previous cancer diagnosis. Interventions to treat valvular heart disease were infrequent; however, when performed, they significantly improved survival. These findings highlight the need to refer cancer patients for regular cardiovascular monitoring and also provide reassurance that interventions may be beneficial.
Long-term heart disease risk among women diagnosed with uterine fibroids was more than 80% higher than in women without uterine fibroids, according to a 10-year study of more than 2.7 million U.S. women.
The Wearable Imaging for Transforming Elderly Care (WITEC) project, led by SMART in collaboration with MIT, NTU, NUS and Tan Tock Seng Hospital, is developing the world’s first wearable ultrasound imaging system for continuous, real-time monitoring of chronic conditions such as hypertension and heart failure. Supported by advanced tools like Southeast Asia’s first sub-micrometre 3D printer and cutting-edge ultrasonic imaging technology, WITEC aims to shift healthcare from hospital-based interventions to proactive, home-based care, enabling earlier detection, personalised diagnosis and improved patient outcomes.
A new study among more than 1,500 British adolescents is the first in the world to assess the association between familial cardiometabolic diseases and the offspring’s risk of premature heart damage by early adulthood. The study was conducted in collaboration between the Rutgers Robert Wood Johnson Medical School in the US, the Universities of Bristol and Exeter in the UK, and the University of Eastern Finland. The results were published in the European Journal of Preventive Cardiology.