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Scientists Discover Way to Send Information into Black Holes Without Using Energy

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Scientists Just Discovered A New Quantum Limit 100 Years After Heisenberg.. & It Could Make Future Computers 100000 Times Faster

For nearly a century, one of the most famous ideas in physics has been Werner Heisenberg's uncertainty principle, which says that it is impossible to know both the exact position and momentum of a particle at the same time. This is not because of faulty measuring instruments—it is simply a fundamental law of nature.

Now, scientists have uncovered another remarkable limit in the quantum world. For the first time, researchers have shown that the location of an electron and the exact timing of its movement also cannot both be measured with unlimited precision. This newly observed "space-time limit" could change our understanding of quantum physics and open the door to faster electronics, advanced quantum computers, and entirely new technologies.

The groundbreaking research was carried out by scientists at the Regensburg Center for Ultrafast Nanoscopy (RUN) in Germany, together with researchers from the Max Planck Institute in Hamburg. Their findings have been published in the journal Nature Photonics.

Looking Beyond Still Images

Modern technologies—from clean energy devices and artificial intelligence to quantum computers—depend on understanding how matter behaves at the smallest scales.

Scientists already have powerful microscopes that can capture incredibly detailed images of atoms and molecules. But still pictures are no longer enough.

To truly understand how nature works, researchers need something much more exciting: slow-motion movies of electrons moving in real time.

Electrons are responsible for electricity, chemical reactions, and many of the properties of materials. Watching them move could help scientists design better batteries, faster computer chips, and more efficient electronic devices.

The Incredible Speed of Electrons

Electrons move unbelievably fast.

While atoms are already tiny—about 10 million times smaller than a millimeter—electrons can change their position within attoseconds.

An attosecond is one-billionth of one-billionth of a second (0.000000000000000001 seconds).

To understand just how short that is, imagine this comparison:

  • One attosecond compared to one second is like one second compared to the entire age of the universe.

At these unimaginably small time scales, the ordinary rules of physics no longer apply. Instead, electrons behave according to the strange laws of quantum mechanics, where particles can also act like waves.

Building an Ultrafast Quantum Camera

To study these lightning-fast events, the research team developed an entirely new laser system capable of producing extremely short bursts of light.

Using these laser pulses, scientists guided electrons from the tip of an atomically sharp metal needle to a nearby silver surface across a distance of only a few atoms.

As the electrons traveled, they generated tiny electrical currents that could be measured with extraordinary precision.

Instead of taking a single picture, researchers used two carefully timed laser pulses.

By changing the delay between these pulses, they could effectively create a slow-motion movie of the electron's journey.

Lead researcher Simon Maier explained that varying the timing between the laser pulses allowed the team to directly observe how electrons responded on attosecond time scales.

Electrons Doing the Impossible

One of the most fascinating discoveries involved a uniquely quantum behavior called quantum tunneling.

In everyday life, if a ball doesn't have enough energy to climb over a wall, it simply stops.

Electrons don't always follow this rule.

Instead, they can sometimes pass straight through an energy barrier without breaking it or going over it.

This strange process is known as quantum tunneling.

Although it sounds impossible from the perspective of classical physics, tunneling is a well-established feature of quantum mechanics and is already essential in technologies like scanning tunneling microscopes.

The researchers compared their experiment to using a high-speed camera that records exactly when an electron tunnels through the barrier.

For the first time, they could directly observe the timing of this process with astonishing precision.

A Tiny Delay That Changes Everything

To better understand what they observed, scientists performed detailed quantum simulations.

These calculations revealed something surprising.

Electrons did not react instantly to the incoming laser light.

Instead, there was a tiny delay of approximately 500 attoseconds before the electron responded.

Although unimaginably brief, this delay provides valuable insight into how electrons interact with light at the smallest possible scales.

The simulations matched the experimental measurements remarkably well, giving researchers confidence that they were seeing a real physical phenomenon rather than a measurement artifact.

Discovering the "Space-Time Limit"

The most important outcome of the study is the discovery of what researchers call the space-time limit.

Here's the basic idea:

If scientists try to determine exactly when an electron is located somewhere, they must use extremely energetic laser pulses.

However, adding more energy causes the electron's quantum wave packet to spread out over a larger area.

In other words:

  • Better precision in time leads to less precision in space.

This trade-off is different from Heisenberg's original uncertainty principle, which links position and momentum.

Instead, it reveals a previously unexplored relationship between the spatial and temporal behavior of quantum particles.

To investigate this effect, researchers placed a single atom on the surface to temporarily confine the electron wave packet before the laser pulse arrived.

This clever technique allowed them to directly measure how the electron's spread in space changed as they increased their precision in time.

Fortunately, even after intense laser excitation, the electron remained localized enough to allow atomic-scale imaging.

Why This Discovery Matters

Although this research focuses on fundamental physics, its practical importance could be enormous.

When a single electron is confined within an extremely tiny region of space and time, it creates local current densities reaching nearly one trillion amperes per square centimeter.

These enormous current densities exist only briefly and in microscopic regions, but they could become powerful tools for future technologies.

Scientists believe such precisely controlled electron wave packets could one day:

  • Trigger individual chemical reactions.

  • Break or create chemical bonds with extreme precision.

  • Design new materials atom by atom.

  • Improve quantum computing.

  • Develop ultrafast electronic devices.

Electronics at Nature's Speed Limit

Today's computers rely mainly on CMOS transistor technology.

Although modern chips are incredibly fast, they still operate far below the fundamental speed at which electrons themselves can move.

According to the researchers, understanding electron behavior at the newly discovered space-time limit could eventually allow electronics and quantum information processors to operate hundreds of thousands of times faster than today's technologies.

Such advances remain a long-term goal, but this discovery provides an important scientific foundation for reaching them.

A New Frontier in Quantum Physics

This breakthrough represents much more than another experimental achievement.

For decades, scientists suspected that there might be a fundamental limit connecting space and time in quantum mechanics, but no one had directly observed it.

Now, researchers have successfully measured this relationship for the first time.

The work not only deepens our understanding of the quantum world but also provides powerful new tools for exploring matter at its smallest scales.

As researchers continue refining these techniques, they hope to manipulate electrons with unprecedented precision, opening possibilities that once seemed like science fiction.

In the words of the research team, the future applications of electrons at the newly discovered space-time limit may now be limited less by the laws of nature—and more by human imagination.

Reference: Maier, S., Spachtholz, R., Glöckl, K. et al. Tracking electrons at the space-time limit. Nat. Photon. (2026). https://doi.org/10.1038/s41566-026-01932-0

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