quantum-physics

Nature Communications, Published online: 22 June 2026; doi:10.1038/s41467-026-74532-9 A tip-enhanced nano-optical trapping spectroscopy enables deterministic trapping and dynamic control of single quantum emitters, including reversible switching between weak and strong light-matter coupling regimes.

A machine learning-powered simulation is giving researchers a new window into the processes that create some of the universe’s heaviest elements. Where do the gold in jewelry, the uranium in nuclear fuel, and many of the universe’s heaviest elements come from? Scientists believe they are forged in some of the most violent events in the [...]

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Why Bohmian Mechanics, Go Programs, AI, and EBP 2.1 Could Help Reopen the Deepest Questions in Physics There is a quiet crisis in theoretical physics, and it has nothing to do with the equations. The equations are fine. Quantum mechanics predicts with staggering accuracy. General relativity bends light exactly as calculated. The Standard Model matches experiment after experiment. The mathematics …

Dear colleagues and theoretical physicists,I would like to introduce a localized dynamic precision numerical and functional analysis framework designed to evaluate continuous field equations without encountering standard machine-level rounding artifacts: so-hmns.To clarify its academic... Read more

In the preface to Scadron's Advanced Quantum Theory there is the statement: At the very least, serious readers should be able to calculate simple diagrams, lifetimes, and cross sections correctly-...

By probing the Universe on atomic scales and smaller, we can reveal the entirety of the Standard Model, and with it, the quantum Universe.

Researchers around the world are racing to develop new quantum-based systems for sensing, communication, computing, and control that have the promise of outperforming traditional systems. Creating stable, measurable, distinguishable quantum states, which would be the heart of any such system, is a daunting task. Quantum states possess unique properties that can be exploited for developing [&#8230…

A single transistor that behaves like a brain cell in the deep freeze could help unlock the next generation of quantum computers and space exploration systems.

Suppose you start with a bunch of uncorrelated qubits. This is called the “trivial product state”, state P. Now, you have a desired end state, state Q. There are 4 cases. You can either use a finite depth quantum circuit (FDQC) to change P to Q. Or, you can’t. You can also choose to use matrices (a quantum gate can represent a matrix) that commute with the symmetry group matrices of Q (called “en…

Researchers found that twisting layered sheets of hexagonal boron nitride can dramatically change the light produced by quantum emitters embedded within the material. The technique offers an unexpected new level of control over components that could power future quantum computers, communications systems, and sensors.

Physicists in China have observed five phases in localization physics within a single quantum system. Using an advanced photonic platform, the team, led by Yucheng Wang and Jingyun Fan at the Southern University of Science and Technology, Shenzhen, has demonstrated that localization physics is likely far richer than physicists anticipated. Their results have been published […]

In a paper published in Science Advances, researchers at the University of Technology Sydney (UTS) in collaboration with the University of Minnesota and Kyung Hee University have found a new way to control quantum light sources, which is one of the key elements needed before quantum technologies can be used reliably in real-world systems. Lead […]

Hi everyone, I'm an undergrad about to pursue a PhD, and I'm interested in quantum computing, QFT, quantum gravity, many-body physics, and philosophy.

The quantum world is mind-bogglingly counterintuitive: at the smallest scales, basic physical qualities like position...

What seems like bending the laws of physics is actually just using them to our advantage.

Quantum 10, 2143 (2026). https://doi.org/10.22331/q-2026-06-19-2143 Quantum reservoir engineering leverages dissipative processes to achieve desired behaviour, with applications ranging from entanglement generation to quantum error correction. Therein, a structured environment acts as an entropy sink for the system and no time-dependent control over the system is required. We develop a theoretica…

Quantum 10, 2142 (2026). https://doi.org/10.22331/q-2026-06-19-2142 We construct an ontological model for the theory known as bilocal classical theory [ 1 ]. To our knowledge, this is only the second time that an ontological model has been constructed for an entire theory, rather than just for some particular scenarios within a theory. This result refutes a conjecture from [ 1 ] which suggested t…

Quantum 10, 2141 (2026). https://doi.org/10.22331/q-2026-06-19-2141 The problem of deciding whether a set of quantum measurements is jointly measurable is known to be equivalent to determining whether a quantum assemblage is unsteerable. This problem can be formulated as a semidefinite program (SDP). However, the number of variables and constraints in such a formulation grows exponentially with t…

When trying to list a series of characteristics of phenomena that define and distinguish quantum phenomena from classical physics, superposition (along with entanglement) is often mentioned within the ...