Discover the Quantum World
In the Quantum World series, we reveal what lies beyond the boundaries of everyday reality. Here, particles behave unpredictably, probability rules over certainty, and the tiniest phenomena can have huge impact. Each article takes you on a short but intense journey – get ready for a world where the rules we know cease to apply, and where curiosity is the most important weapon.
Incredibly Entangled World
In the EPR paradox, particles remain correlated even at large distances, and the results of their measurements are perfectly correlated without a classical “signal,” opening the door to phenomena such as quantum entanglement and teleportation (12/2025) Read article
Quantum entanglement, EPR paradox, non-locality, Bell inequalities, quantum teleportation
Magica Quantica Polarica
The history of light polarization stretches from medieval navigation myths to Malus’s discoveries, which showed that light can be “organized” by its vibration direction and that the intensity of transmitted light can be controlled with polarizers — a cornerstone of modern photonics and quantum communication. (11/2025) Read article
Polarization, light, Malus’s law, photon, quantum photonics, electromagnetic waves, quantum cryptography, BB84 protocol
To Bit or Not to Bit – a Qubit
Both the classical “bit” and the quantum “qubit” encode information, but while a bit is strictly 0 or 1, a qubit lives in a superposition of both states at once, opening the way to revolutionary quantum technologies. (10/2025) Read article
Qubit, quantum information, superposition, quantum computers, quantum technologies
Spin Is In
Although electrons and other particles do not “spin” in the classical sense, they possess an intrinsic quantum angular momentum called spin. (09/2025) Read article
Spin, quantum angular momentum, fermions, bosons, Zeeman effect, Einstein–de Haas experiment, Stern–Gerlach experiment, Pauli exclusion principle
Through Barriers Without Obstacles
In the quantum world, a system can “overcome” energy barriers that a classical object could not – leading to the effect known as quantum tunneling. (08/2025) Read article
Quantum tunneling, energy, Schrödinger equation, alpha radiation, tunnel diode, tunneling microscopy
Exchanges Without Change
If two identical particles are swapped, the observable properties of the whole system remain the same, resulting in striking effects such as Bose–Einstein statistics and the Pauli exclusion principle. (07/2025) Read article
Symmetry, Bose–Einstein condensate, Pauli exclusion principle, fermions and bosons
The Dance of Light and Matter
When light hits matter, photons and particles engage in a complex “dance,” where the quantum waves of light and matter influence the outcome. (06/2025) Read article
Spontaneous and stimulated emission, HOM dip experiment, laser physics
Definitely Indefinite World
From the famous double-slit experiment to quantum uncertainty, reality isn’t just “unknown” – the properties of a quantum system have no definite value before measurement. (05/2025) Read article
Quantum uncertainty, double-slit experiment, Heisenberg uncertainty, photon, probability
Don’t Disturb the Waves, Eliminate the Particles
The quantum world does not resemble classical notions of waves or particles; rather, it involves abstract “quantum waves” of probability that manifest as specific outcomes upon measurement. (04/2025) Read article
Wave-particle duality, quantum wave, interference, Young’s experiment
The Probable Face of Truth
In quantum physics, randomness isn’t just a flaw of classical models, it’s a fundamental feature of measurement itself. (03/2025) Read article
Randomness, probability, Lorenz attractor, polarization, Born’s rule, quantum random generators
Between us, Atoms
From ancient Greek notions of indivisible atoms to the quantum reality of today’s atomic model. (02/2025) Read article
Atomic model, periodic table, elementary particles, atomic clocks
The Invisible Photon
Discover how the quantum view of the photon came about and why light behaves in such unexpected ways. (01/2025) Read article
Photon, photoelectric effect, SNSPD (superconducting nanowire single-photon detector)
