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Figure: above: the trimodal velocity distribution from the experiment. The large peak in the middle represents the Bose-Einstein condensate, and on either side, carrying opposite velocities, are the phonons created by parametric excitation. Below are the individual phonons (blurred spheres) and a diagram representing their entanglement.

02.03.2026

Scientific news

Simulation of the early universe in a Bose-Einstein condensate

Schematic representation of the principle behind the experiment. A laser excites a crystal defect in a sheet of hBN, composed of boron atoms (in red) and nitrogen atoms (in blue). The emitted photons are separated from the reflected laser using a polariser. These photons, emitted under resonant excitation, have properties that are particularly favourable for quantum information.

23.02.2026

Scientific news

Generation of indistinguishable photons by laser-controlled resonance of defects in a 2D material

12.02.2026

Scientific news

When quasicrystals meet the quantum Hall effect

Definition of a flip. The walker (represented by a green crocodile) is arriving at a site that has not yet been visited (shown in red), where it immediately consumes (for the n-th time) the food, shown in red on the right and blue on the left (sites where food has already been consumed appear in black). If the next food consumed is blue (to the left of the area already visited), a flip will have occurred; if it is red, it will not.

13.02.2026

Scientific news

Expanding the territory explored: a single law to rule them all!

$Schematic view of the modeling of coherent diffraction of a beam of hydrogen atoms through a sheet of graphene.$

05.02.2026

Scientific news

Hydrogen atoms reveal interactions at the atomic scale in graphene

Figure : A riboswitch acts as a biological sensor, changing its shape from an “ON” state (left) to an “OFF” state (right) when it binds to a metabolite, enabling it to control gene activity.

30.01.2026

Scientific news

Designing molecular switches using AI

Figure : (a) LA attenuation (of the energy) as a function of frequency at 15K (▲) and 300K (■). All other symbols are data from the literature, namely BLS results using visible (□) [53] and ultra-violet (△▽) [54, 55], (∗) [56] incident wavelengths (UV data from Ref. 57 are excluded as unexplained [56]). The symbols (•) [58] and (□) [34] are previous data from picosecond acoustics. The lines are explained in the text.

29.01.2026

Scientific news

Do THz acoustic waves propagate in glass?

26.01.2026

Scientific news

Magnetic Whirlpools Create Their Own Rhythms, Revealing New States of Matter

Artist’s view of the atom chip used at the University of Basel and of three entangled Bose–Einstein condensates serving as local sensors.

23.01.2026

Scientific news

Quantum metrology: a sensor network to surpass the standard limit

Phase diagram for three particles as a function of interaction strength c and forcing amplitude K.

22.01.2026

Scientific news

Together they restore chaos!

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