The famous second law of thermodynamics says that the world gets more and more disordered when random chance is at play. Or, ...

For over a century, quantum mechanics and Einstein’s general relativity have stood as the cornerstones of modern physics, yet ...

A new theoretical approach is proposed to explain the nature of the well-known narrow and intense optical J-band of ...

Entropy always increases, but in quantum systems, traditional entropy measures seem constant. TU Wien researchers resolved this paradox by considering Shannon entropy, which accounts for the ...

Philip Ball looks at how a little-known paper by Niels Bohr demonstrates the turmoil in physics on the brink of quantum ...

Does quantum theory imply the entire Universe is preordained ... Pauli’s successful calculation 5 of the hydrogen atom spectrum using the scheme in December that year was widely regarded ...

In Bohr’s 1913 papers he envisaged atoms along the lines established by his mentor Ernest Rutherford: dense nuclei orbited by electrons. Bohr’s idea was that the energies and frequencies of the ...

"In these atom clouds, excitations occur on large ... "The so-called Hamilton operator is crucial in quantum theory," says Ott. "This is a mathematical object that describes how a quantum system ...

The chip has broken new ground in a key random circuit sampling benchmark, an important development in Google's roadmap for ...

Once confined to the province of abstract theory, quantum computing seeks to use operations based on quantum mechanics to ...