Tag: quantum information

Physicists have shown that the Krylov hierarchy of quantum Fisher information forms a genuine probability distribution, with an exact algebraic ...

Physicists have long known that the early universe and a laser-driven crystal share a deep mathematical kinship. Both manufacture pairs ...

Researchers in Vienna have redesigned dissipative quantum neural networks so each building block can implement any quantum channel, and shown ...

A new theoretical study shows that the geometry of a spinning cosmic string, together with magnetic fields and Aharonov-Bohm flux, ...

Researchers from Rutgers, IBM and collaborating institutions have shown that a quantum computer can repeatedly check and reset parts of ...

University of Illinois researchers have built a scalable chip-based quantum memory that stores photons for over a microsecond using erbium-doped ...

Physicist Gabriele Grosso has received a five-year, $1.35 million Gordon and Betty Moore Foundation Experimental Physics Investigator award to explore ...

Researchers have devised quantum algorithms that compute maximal quantum f-divergences and Kubo–Ando matrix means, unifying entropy estimation and matrix averaging ...

A new study computes the exact trace distance between N-qubit W states and the mixed k-producible hierarchy, yielding a closed-form ...

Physicists in China have derived exact bounds linking two quantum correlation measures, establishing a rigorous hierarchy for quantifying the nonclassicality ...