1+ day, 18+ hour ago   (70+ words) One of the most fundamental questions in quantum information theory is deceptively simple to state: given a quantum system that could be in any one of several possible states, how well can we guess which one it actually is? Because…...

1+ day, 20+ hour ago   (92+ words) A team of quantum physicists in Morocco has revealed that the strange geometry underlying quantum states and the efficiency of quantum teleportation are far more intimately connected than previously appreciated. In a study published in Quantum Information Processing, Chaymae Boukacem,…...

2+ day, 5+ hour ago   (756+ words) In the first instants after two high-energy particles slam into each other, something remarkable can happen: the kinetic energy of the collision transforms into entirely new particles that did not exist before the impact....

4+ day, 15+ hour ago   (692+ words) Quantum entanglement, the eerie link that binds the fates of particles regardless of distance, has long been the province of elaborate laboratory setups with mirrors on tables and beams snaking through meters of free space....

5+ day, 20+ hour ago   (454+ words) Researchers at the Cape Peninsula University of Technology in Cape Town have reported a systematic development process aimed at building a single-photon detector that costs a small fraction of the commercial instruments that currently dominate quantum optics laboratories....

1+ week, 2+ day ago   (897+ words) In the strange world where quantum mechanics bends the rules of matter, few phenomena have captivated physicists as thoroughly as the exciton condensate—a state in which electrons and holes pair up and behave, collectively, as a single coherent quantum…...

1+ week, 3+ day ago   (111+ words) In an experiment that sounds almost too strange to be true, researchers working on the Greek island of Crete report that a thoroughly ordinary paramagnetic powder — a substance so weakly magnetic that its contribution to an external field is normally…...

2+ week, 2+ day ago   (514+ words) A new study titled “Coherent room-temperature dipole synchronization in plasmonic nanocavities” has drawn attention to a long-standing challenge in nanophotonics: how to make microscopic light emitters behave as a coordinated system under ordinary, room-temperature conditions. The work, published in Nature…...

2+ week, 5+ day ago   (1400+ words) Quantum information researchers have proposed a new route toward solving one of the field’s most persistent open problems: the CQC conjecture, a mathematical statement about how much information two quantum systems can retain after being measured in incompatible ways. In…...

2+ week, 6+ day ago   (577+ words) A new study has brought physicists closer to watching an exotic state of matter reveal itself through light. In research published in Nature Physics, L. Wang, F. Menzel, F....