Physics Department News
Battery life for wearable electronic devices could be improved with design considerations to stress asymmetry clues in cylindrical battery cell formats
Researchers in WMG and the Department of Physics at the 天美传媒 have found that asymmetric stresses within electrodes used in certain wearable electronic devices provides an important clue as to how to improve the durability and lifespan of these batteries.
Approaching the fundamental limit of quantum sensing with imperfect detectors
In a work appearing on the the group of Animesh Datta, with collaborators at the University of Nanjing, China and the University of Ottawa, Canada, have shown that even noisy and saturating detectors can approach shot-noise-limited detection if used judiciously. Shot-noise-limited optical detection is the first, and often the most challenging, step to quantum-enhanced optical sensing. This work uses a technique called weak-value amplification and enables, over a range of input light intensity well beyond the dynamic range of the photodetector, shot-noise-limited detection. Weak-value amplification relies on the principle that only a subset of the photons contains almost all of the information about the sensed object.
Thermonuclear blast sends supernova survivor star hurtling across the Milky Way
An exploding white dwarf star blasted itself out of its orbit with another star in a 鈥榩artial supernova鈥� and is now hurtling across our galaxy at 900.000km/h, according to a new study led by Boris G盲nsicke from the Warwick Astronomy and Astrophysics group, published today in the . It opens up the possibility of many more survivors of supernovae travelling undiscovered through the Milky Way, as well as other types of supernovae occurring in other galaxies that astronomers have never seen before. Have a look at the Warwick press release press release and the paper for free on
T-ray camera speed boosted a hundred times over
Scientists are a step closer to developing a fast and cost effective camera that utilises terahertz radiation, potentially opening the opportunity for them to be used in non-invasive security and medical screening.
A research team led by Professor Emma MacPherson and involving scientists from the Chinese University of Hong Kong has reached a crucial milestone towards developing single-pixel terahertz imaging technology for use in biomedical and industrial applications.