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Quantum Teleportation Achieved, Team Makes Particles QUANTUM JUMP from One Location to Another

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TExperts have seen electrons quantum leap between materials, leaving no trace of where they had been.

The action has been described as a strange type of quantum movement where the electron traveled from the first layer of a material to the third without appearing in the second.

Lead researcher Hui Zhao, from the University of Kansas, said: “Electrons can show up on the first floor, then the third floor, without ever having been on the second floor.”

The phenomenon is known as van der Waals force which is a quantum mechanical attraction between two forces, similar to how a magnet acts.

Geckos use Van der Waals force

Geckos use Van der Waals force

Van der Waals force allows geckos to stick to walls, for example.

Scientists have been researching the force in the hope that they will be able to create materials using van der Waals force for electronic materials.

However, researchers have been unsure how the electrons interact within the materials, which led them to this experiment.

In this study, the scientists tested MoS2, WS2, and MoSe2 – all semiconducting materials which respond to light with different colours – all layered on one another.

Van der Waals force allows geckos to stick to walls, for example.

Scientists have been researching the force in the hope that they will be able to create materials using van der Waals force for electronic materials.

However, researchers have been unsure how the electrons interact within the materials, which led them to this experiment.

In this study, the scientists tested MoS2, WS2, and MoSe2 – all semiconducting materials which respond to light with different colours – all layered on one another.

Lasers were fired through three materials

Lasers were fired through three materials

This meant the researchers were able to use different coloured lasers to affect specific electrons in one of the three layers, allowing them to track the movement of the electrons.

Zhao continued: “The colour of the laser pulse was chosen so that only electrons in the top layer can be liberated.

“We then used another laser pulse with the ‘right’ colour for the bottom MoS2 layer to detect the appearance of these electrons in that layer.

“The second pulse was purposely arranged to arrive at the sample after the first pulse by about 1 picosecond [a trillionth of a second], by letting it travel a distance 0.3 mm longer than the first.”

To decipher why they were transferring so quickly, the team then brought in a third laser with another colour to examine the middle layer, and found that there were no electrons there at all, which defied regular physics.

Zhao added: “If electrons were things that followed ‘common sense’, like so-called classical particles, they’d be in the middle layer at some point during this one picosecond.

“This study showed electrons can transfer between these layers in a quantum fashion, just like in other conductors and semiconductors.”

SEAN MARTIN
Express UK


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