Quantum physics

Infographic explaining the "Schrodinger's Cat" thought experiment. Illustration: depositphotos.com

Schrödinger's cat is heating up: A revolution in the concept of temperature in quantum physics

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Scientists have succeeded in producing quantum superposition states even at high temperatures, breaking the myth that only cold allows quantum phenomena to exist.
The metals region of the periodic table. Illustration: depositphotos.com

Quantum breakthrough could unlock the secret of strange metals – and the future of superconductors

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The strange metals are structurally close to high-temperature superconductors, which have the potential to conduct electricity without energy loss. Understanding them could revolutionize power grids and make energy transmission more efficient.
Prof. Dan Schachman, who serves as Chairman of the Wolf Prize Foundation, Prof. Moti Haiblum, President of the State Yitzhak Herzog and Minister of Education Yoav Kish. Photo by Press Office, Wolf Prize Foundation

Wolf Prize in Physics for 2025: Recognition of quantum computing researchers, including Prof. Motti Heiblum of the Weizmann Institute

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Prof. Jayendra Jain, Prof. Moti Haiblum and Prof. James Eisenstein won the prestigious award for their contributions to understanding the unique properties of two-dimensional electron systems in strong magnetic fields, and in particular in studying the fractional quantum Hall effect.
Comparison of the experimental measurement (above) and the theoretical simulation (below)

Scientists have discovered unexpected behavior in pairs of CO₂ molecules after ionization

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An international team of scientists has made a surprising discovery in the field of molecular physics, revealing unexpected symmetry breaking dynamics in carbon dioxide dimers after ionization. The study, published in Nature Communications, provides new insights on
Finally the DOM experiment in the South Pole Telescope detector system is starting to give results. Credit: Mark Krasberg, IceCube/NSF

Bending reality: Einstein meets quantum mechanics in Antarctic ice

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Researchers examine the interface between these two theories, using ultra-high-energy neutrinos detected by a particle detector placed deep inside the Antarctic ice sheet at the South Pole

Non-grieving anions observed for the first time - a new technology for quantum computing?

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The non-Abelian anions are quasi-particles with fascinating statistical and topological properties. Until recently, these particles were only theoretical, but now a research group from Harvard University has created them for the first time in the laboratory. The discovery is made
Tamar Stein. Credit - Uri Stein

The Hebrew University is a leader in entry-level ERC grants. Ten researchers will receive 17 million euros for five years 

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The number of wins by male and female Hebrew researchers places the university in first place among universities in Israel in terms of success rate among applications, with an increase of 5.5% compared to last year and it has the highest number of winners
The picture shows an energy band diagram of a micro-resonator based on a GaAs semiconductor as studied in the experiment, in which a quantum condensation of light-matter coupled quasi-particles called exciton-polaritons (exciton-polaritons) - through two-photon absorption. The achievement paves the way for new coherent control schemes and the realization of an efficient laser source in the terahertz (THz) range of electromagnetic radiation

First observation of "two-photon absorption for quantum condensation"

The achievement may accelerate research in new quantum technologies and developments in security, biological sensing, wireless communication and more
Hawking radiation from a black hole. Illustration: depositphotos.com

Everything in the universe is doomed to evaporate - Hawking's radiation theory is not limited to black holes

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A team of researchers confirmed Hawking's prediction of evaporating black holes, but extended its application to all large objects in the universe

Three free lectures in honor of World Quantum Day on May 10

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On May 10, three lectures in the field of quantum will be delivered to the general public, zoomed and free of charge. The event is being held in honor of World Quantum Day under the auspices of the Center for Quantum Information at the Hebrew University. No need to register in advance.
A sealed chip used to create a magnet-based informer. Photo: Prof. Ron Polman's laboratory, Ben Gurion University

to be in two places at the same time

Scientists are trying to answer one of the biggest open questions in physics

Fundamental concepts in quantum physics: Bell's inequality - which was the basis of the Nobel Prize

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Inspired by the winners of the 2022 Nobel Prize in Physics, we will discuss Bell's theorem without introducing formulas and inequalities. In this article we will illustrate how experiments with entangled particles contradict the assumption that there are hidden variables and that quantum mechanics indeed
In the photo, from right to left: Prof. Avi Israeli, chairman of BSF; Minister of Innovation, Orit Farkash HaCohen; Director General of the Ministry of Innovation, Science and Technology, Hila Hadad Hamelnik. Photo credit: Shmulik Almani.

A first agreement of its kind in the field of quantum was signed between Israel and the USA

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During the visit of the Minister of Innovation, Orit Farkash HaCohen to the USA, she meets with senior officials and businessmen in order to strengthen the technological cooperation between the countries - after the Jerusalem Declaration. and collaborations
Scientific diagram: The journal Optica presents a new way to design an optical system to obtain the desired photonic entanglement - a collaboration between researchers from the Technion and Tel Aviv University. (credit SimplySci Animations)

A new way to create entangled photons

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Researchers from the Technion and Tel Aviv University have developed an innovative method to engineer quantum entanglement in a crystal, using computational learning tools

Another step towards quantum gravity

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Physicist Hikida from the University of Tokyo and his colleagues developed the dual model for Einstein's theory of gravity in three-dimensional de Sitter space. This is a significant step towards a model that will faithfully describe nature, that is, the physics of
Quantum tunneling. Photo: depositphotos.com

Does quantum tunneling cause genetic mutations?

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The human DNA molecule contains about three billion bases and replicates every day about two trillion times. In order for the cellular structure to be preserved, the replication process must be incredibly precise, but at the same time, the appearance of mutations
Prof. Yehoshua Zak, winner of the Israel Prize. Photo: Technion spokespeople

Prof. Yehoshua Zak - winner of the Israel Prize in Physics and Chemistry

The award was given to Prof. Zak for "developing mathematical tools such as 'Zak transformation' and 'Zak phenomenon' used to decipher the phenomena of electrical conduction in a magnetic field. These tools enable the prediction of materials with unique properties for building
Wave function, quantum physics. Illustration: depositphotos.com

Quantum theory affects the process of light emission

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Researchers from Tel Aviv University, the Technion and MIT teamed up to shed new light on quantum theory
Schrödinger's cat. Illustration: shutterstock

Basic concepts in quantum physics: what is the Schrödinger equation?

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The most famous quantum equation was published in 1926 on just two pages. What does she describe and how did Schrödinger think of her?
A sealed chip used to create a magnet-based informer. Photography: Yair Margalit

A device that will make it possible to answer one of the central questions in physics that remain unanswered

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More than 70 years ago, scientists in the field of physics came up with an idea to use magnetic fields and an atomic property called spin in order to put a body in two places at the same time. Now, a research group from Ben-Gurion University in the Negev
quantum wave. Illustration: depositphotos.com

Basic concepts in quantum physics: wave-particle duality

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Every week we will delve deeper into a physical idea known in popular literature and bridge the gap between what is shown in the media and what science really states. This time we will start with wave-particle duality, an elusive concept that sometimes raises more questions than answers, but
An atom is surrounded by electrons. Photo: depositphotos.com

Preliminary evidence for the hypothesis that the electron is not an elementary particle

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Led by researchers from the Institute of Physics at Princeton University, an initial discovery has been published that strengthens the controversial hypothesis that the electron is made up of two elementary particles: one carrying a negative electric charge and the other the electron's spin. If
The device that Kotler and his colleagues built to create an interlacing between two tiny drums, thin membranes made of aluminum, and measure it. Photo courtesy of Florent LeCoq and Shlomi Kotler - US National Institute of Standards and Technology

A shadow of truth: thanks to a groundbreaking study published in Science - quantum entanglement emerges from the shadows

The researchers were able to directly observe the entangled quantum state of two mechanical drums, each with a size close to the diameter of a human hair.
wormhole Photo: depositphotos.com

Researchers from Germany: dark matter and the problem of hierarchy explained with the help of a fifth dimension

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Researchers around the world are looking for an explanation for the mystery of dark matter and the problem of hierarchy. The two problems seem completely different, but according to researchers from Johns Gutenberg University in Germany, both can be solved with the help of a compact fifth dimension.
Prof. Yitzhak Aployd. Photo: Nitzan Zohar, Technion Spokesperson

Schrödinger Medal for Research Prof. Yitzhak Apluig from the Faculty of Chemistry at the Technion

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magnet. Illustration: Image by W. v/d D. from Pixabay

The journey to the pole

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pigeon trap Illustration: The Hebrew University and the Weizmann Institute

A new means of measuring cold collisions

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Simulation of the experiment in which the first images of a quantum electronic crystal were obtained, the existence of which was predicted 80 years ago. The researchers saw electrons arranged as pearls in a string (red balls) along a nanowire. To observe the electrons without affecting them, a single electron (in green) carried by another nanowire was used as a sensor (scanning detector) that detected the electric fields created by the electrons in the crystal

like an electron on a wire

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Schrödinger's cat. Illustration: shutterstock

The quantum world is not as discrete as we thought and therefore it is possible to save Schrödinger's cat

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The heart of the detector in the XENON1T experiment. The copper rings shape the electric field used to transport the electrons

Scientists searching for dark matter have observed the rarest atomic decay ever measured

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An electrical resistance greater than zero was measured in a fractional quantum Hall system that is not polarized, as a result of particles moving against the current

On the edge, against the current

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the spin dance. Figure from WIKIMEDIA

Researchers were able to write multi-state magnetic memory using spin currents

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Photonics. FROM PIXABAY.COM

New photonic chip promises more robust quantum computers

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on the fastest physics

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The accelerators of the future will be tiny and use antimatter

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The experimental setup for examining the thermal conductivity of electrons participating in the quantum Hall effect

almost perfect

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Cold beam experiments. The shock waves block the flow of particles in the beam. Source: Weizmann Institute magazine.

Cold, frozen, warming: how to reduce shock waves in particle beam experiments

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Quantum computing. Illustration from PIXABAY.COM

Ben-Gurion University researchers question the applicability of Nobel Prize-winning research

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Measurement of heat transfer in a clean sample of graphene. Left: optical image of the graphene sample. Right: The thermal imaging reveals a chain of rings that is the boundary of a unique process of heat transfer occurring in the sample.

warm, diffuse

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Image of light emitted from a single ionized strontium atom immersed in a cold cloud of rubidium atoms. The ion is trapped by electric fields that oscillate at radio frequencies. The atoms are trapped by a focused laser beam. Both the atoms and the ion are cooled to a temperature of a millionth of a Kelvin above absolute zero temperature.

One against a hundred thousand

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A silver nanostructure in the shape of a "bow tie", with a quantum dot trapped in its center (red arrow). Photographed using an electron microscope

Nano bow ties

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Above: An electric current, behaving like a liquid, creates eddies (the white arrows) whose particles produce heat (in red and orange). Below: when the current operates according to Ohm's law, the heat is generated only around the two electrodes between which the current flows (in red and orange)

Electricity flows in your hands

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Earth as a hard drive

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New accumulation mode. Image: University of Cambridge

A new state of aggregation in a two-dimensional material has been discovered

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Super symmetry. Illustration: shutterstock

Clean up after Einstein

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Mukund Vengalattore Atom Cooling Laboratory at Cornell University. PR photo

The quantum zenon effect has been confirmed - atoms will not move while you watch them

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The left diagram represents electromagnetic activity with light at the lowest level possible according to the laws of classical physics. On the right, part of the electromagnetic field has been reduced even further. The price is the inability to measure the beam of light. This effect is called "squeezing" (like squeezing juice from an orange) due to the elliptical shape it creates. Illustration: Mete Atature, University of Cambridge.

Scientists "squeezed" a beam of light - photon after photon

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Movement of gases in space. Illustration < a href="http://www.shutterstock.com/gallery-1964531p1.html">Peter Kai/Shutterstock

Basics of blitzkrieg / Tim Faluka

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