Quantum field theory
Everything filed under concepts in our physics coverage, the 60 reports filed on it so far.
Schrödinger's 1944 manuscript reveals hidden-variable model
A newly analyzed 1944-45 manuscript by Erwin Schrödinger details a hidden-variable model, showing it was a proof of principle for quantum randomness...
JUNO experiment nears answer to neutrino mass ordering mystery
A new theory proposes a heavy neutrino that shaped the early universe, while the JUNO detector in China gathers data poised to test this idea and...
Surface-Attached Molecules Reach Fundamental Quantum Coherence Limit
Scientists at the Max Planck Institute for the Science of Light have, for the first time, achieved the ultimate quantum coherence limit with...
Fractional Fermi sea discovered in ultracold cesium atoms
Physicists have created a fractional Fermi sea, a new quantum state in one-dimensional ultracold cesium atoms, by cycling interactions between strong...
Monolithic 3D ion trap enables quantum simulation with heavier ions
A new monolithic three-dimensional ion trap fabricated from fused silica glass successfully traps heavier ions like ytterbium, bridging the...
Cavity-less Brillouin strong coupling demonstrated in optical fibre
Researchers achieved strong coupling between light and sound in a standard optical fibre at cryogenic temperatures without using an optical cavity...
Single-photon skyrmion topology transferred between entangled photons
Researchers used a silicon-nitride photonic chip to transfer the topology of a single-photon quantum skyrmion to an entangled photon pair.
Fundamental Constants Constrain Liquid-Based Life
A theoretical study finds the universe's physical constants must allow liquids to flow for life to exist, while separate research derives Einstein's...
Kinetic Artwork Superposition Visualizes Quantum Strangeness
A kinetic art exhibition at the University of Strathclyde uses 16 spinning aluminium panels to create visual analogies for quantum superposition and...
Quantum photonic processor demonstrates two-photon interference in orbit
A quantum photonic processor launched in June 2025 has successfully observed two-photon interference in low Earth orbit.
Independent labs confirm e/4 charge in gallium arsenide
Two independent experiments have measured quasiparticles carrying one-quarter of an electron's charge in the ν = 1/2 fractional quantum Hall state.
Spin Rephasing Stores Single Photons for 180 Microseconds
ICFO researchers stored single photons for up to 180 microseconds using spin rephasing in a praseodymium-doped crystal quantum memory.
Quantum simulator replicates string-breaking process
A 13-ion trapped-ion quantum simulator modeled string breaking, a process analogous to quark dynamics and particle formation in the early universe.
Classical Networks Mimic Quantum Math in Biology
Chemist Gregory Scholes argues that biological systems may achieve quantum-like efficiency through classical, complex networks rather than genuine...
Trapped-ion quantum simulator observes string-breaking dynamics
A Duke University-led team has used a trapped-ion quantum simulator to observe string-breaking dynamics.
Stanford team observes quantum jumps of sound for first time
Stanford University researchers have directly recorded real-time quantum jumps of sound in a mechanical resonator.
Quantum light swimmer breaks Newton's third law
Physicists have demonstrated a passive swimmer made of quantum light moving upstream by breaking Newton's action-reaction principle.
Space Station and Lab Tests Confirm Einstein's Equivalence Principle
A quantum test on the China Space Station achieved record precision for the weak equivalence principle.
Quantum entanglement persists in fleeting Z bosons at CERN
Physicists have found strong evidence that Z bosons, heavy particles produced in Higgs boson decays at the Large Hadron Collider, become quantum...
Jonathan Halliwell on Decoherence
Theoretical physicist Jonathan Halliwell explains how decoherence and the 'histories' approach resolve foundational quantum paradoxes.
Stanford team observes quantum jumps of sound in real time
Researchers have directly observed the discrete quantum jumps of phonons in a mechanical resonator for the first time, using a superconducting qubit.
Spinon to Triplon Transition Observed in Frustrated Quantum Magnet
Neutron spectroscopy reveals a quasiparticle energy crossover from deconfined spinons to bound triplons in the spin-Peierls material CuGeO3.
Global Survey Finds No Consensus on Universe's Biggest Questions
A worldwide survey of physicists reveals deep divisions on dark matter, quantum gravity, and cosmology, with only two concepts winning majority...
Harvard Uses Sound Waves to Extend Qubit Coherence
Harvard researchers have protected a diamond-based qubit using microscopic sound waves, extending its quantum coherence time by roughly threefold.