definition quantum-mechanics 
Physics World
JANUARY 11, 2022
Complex numbers are essential to achieve the most accurate quantum-mechanical description of nature, according to experiments done by two independent teams of physicists. While the mathematics of complex numbers underlies modern quantum theory, it is also possible to describe the quantum world purely in terms of real numbers.
Physics World
JUNE 2, 2021
As a PhD student and teaching assistant at the University of Waterloo in the late 2000s, I was asked to proctor a final exam in first-year mechanics that was being taken by a diverse student group. Typically, this breakdown was along the lines of classical mechanics versus quantum mechanics. Culturally bound.
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Physics World
AUGUST 6, 2021
Like many science writers, I have often adopted the conceit that quantum mechanics and general relativity are our two principal (if incompatible) theories of the physical world. It undergirds the theories of information and computation, for example via mathematician Claude Shannon ’s definition of information entropy.
Physics World
OCTOBER 27, 2021
Since its inception, quantum theory has presented us with many strange and seemingly paradoxical phenomena. One of the oddest examples is the quantum Cheshire cat effect, in which properties of quantum objects become disembodied from the objects themselves. A new spin on the quantum Cheshire cat.
Physics World
AUGUST 18, 2021
Subsequent studies have produced nothing definitive. BECs (ultracold gases of trapped atoms all cooled to the quantum ground state of the trap) of highly magnetic atoms can spontaneously form regular, ordered clusters in an applied magnetic field, showing the emergence of supersolidity from a completely isotropic superfluid state. “The
Physics World
FEBRUARY 16, 2022
Quantum computers are often touted as the solution to all our problems. Fuelled by this enthusiasm, a number of quantum computing firms have started joining established markets. However, despite this interest, there is still a lot of uncertainty around the near-term uses of quantum computers. Optimization is hard.
Frontiers
MARCH 22, 2022
As a member of the LISA and Einstein Telescope consortia, his research areas are gravitational waves, nonlocal quantum gravity, multifractal spacetimes, cosmologies beyond the standard model, and string theory. I mainly work on two theories of gravitation: multifractional spacetimes and nonlocal quantum gravity.
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