Quantenexperiment könnte endlich das schwer fassbare Gravitationsteilchen enthüllen – das Graviton

https://www.sciencealert.com/quantum-experiment-could-finally-reveal-the-elusive-gravity-particle

9 Comments

  1. > The graviton – a hypothetical particle that carries the force of gravity – has eluded detection for over a century. But now physicists have designed an experimental setup that could in theory detect these tiny quantum objects.

    > The problem is, they interact so weakly that they’ve never been detected, and some physicists believe they never will.

    > But a new study, led by Stockholm University, is more optimistic. The team has described an experiment that could measure what they call the “gravito-phononic effect” and capture individual gravitons for the first time.

    > The experiment would involve cooling a massive, 1,800 kilogram (nearly 4,000 pound) bar of aluminum to a hair above absolute zero, hooking it up to continuous quantum sensors, and waiting patiently for gravitational waves to wash over it. When one does, the instrument would vibrate at very tiny scales, which the sensors could see as a series of discrete steps between energy levels.

    > Each of those steps (or quantum jumps) would mark the detection of a single graviton.

    > Any potential signal could then be cross-checked against data from the LIGO facility to ensure it’s from a gravitational wave event and not background interference.

    > It’s a surprisingly elegant experiment, but there is one catch: those sensitive quantum sensors don’t actually exist yet.

    > “We’re certain this experiment would work,” says theoretical physicist Thomas Beitel, an author of the study. “Now that we know that gravitons can be detected, it’s added motivation to further develop the appropriate quantum-sensing technology. With some luck, one will be able to capture single gravitons soon.”

  2. NY_State-a-Mind on

    I dream that one day humans can exert our control over gravity to the same dregee we can with electricity

  3. There might not even be a gravity particle. Some physicists think gravity is just the curvature of space time.

  4. 5DollarsInTheWoods on

    We will never find a Graviton. You can’t find what doesn’t exist. However, maybe we’ll get closer to checking that theory off the list.

  5. Cytotoxic-CD8-Tcell on

    Hurry- I bet wif a fren ten years ago that we can have antigrav car by 2026, ten years after confirming gravity is a wave as per Einstein’s prediction and hypothesis tested to be true. Almost there!

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