Posted on: June 15, 2022 Posted by: Jerry D. Pfeil Comments: 0

Quantum physics is often able to make objects behave in impossible ways. For example, it can tunnel through barriers or appear to exist in more than one place at once. Scientists have now used quantum physics to create a “superabsorption” battery that absorbs more energy the larger it is.
Quantum physics has revealed that matter can act in surprising ways collectively, according to previous research. In “superradiance”, a group of charged atoms can emit a much stronger light pulse than they could individually.
In the past decade, researchers have also discovered the reverse of superradiance was possible–super absorption, with atoms cooperating to display enhanced absorption. Super absorption has been observed in a small number of atoms.
Scientists have now developed a superabsorbent quantum battery that takes less time to charge.
James Quach (a theoretical physicist from the University of Adelaide in Australia) is the study’s lead author. Quantum effects can speed up other operations, such as transferring or harvesting energy. ”
The new device comprises a reflective microcavity that looks like a wafer-like material and contains a semiconducting organic Lumogen F Orange dye. Researchers charged the dye with energy by using a laser. The team used ultrafast detectors to monitor how the dye stored and charged light energy. The charging time decreased with increasing microcavity sizes and increased numbers of dye molecules.
Constructive interference can cause super absorption. “When different waves combine to have a greater effect than any one wave alone,” Quach explains. He says that if there is enough coherence, where the waves move in lockstep, clusters of molecules can absorb light more efficiently than individual molecules. The more molecules you have, the more ways there are to interfere constructively. ”
Quantum systems like quantum computers can experience disruption when elements lose their coherence. Unwanted interactions with their environment often cause this. To prevent this, quantum experiments often require isolated quantum systems.
Quach states that decoherence helps stabilize quantum battery energy.
Coherence can help quantum batteries charge quickly, but decoherence prevents them from quickly discharging that energy. Quach states that the right amount of coherence is necessary for a device with enhanced coherence absorption of light to not also discharge with coherence enhancement emission.
While keeping large quantum systems coherent may be difficult, Quach states that “our quantum battery isn’t as fragile to environment interaction as other quantum technology, like quantum computers,” and that it can scale up to larger devices.
These prototype quantum batteries can be charged with light. Quach states that there may be other methods to harness the quantum-interference effect. Our next steps will be to investigate how our results could be combined with other methods of storing or transferring energy to create a practical device. However, the key challenge is to bridge the gap between this proof of principle for a small device and the use of the same ideas in larger devices. ”
While keeping large quantum systems coherent may be difficult, Quach states that “our quantum battery isn’t as fragile to environment interaction as other quantum technology, like quantum computers,” and that it can scale up to larger devices.
These prototype quantum batteries can be charged with light. Quach states that there may be other methods to harness the quantum-interference effect. Our next steps will be to investigate how our results could be combined with other methods of storing or transferring energy to create a practical device. However, the key challenge is to bridge the gap between this proof of principle for a small device and the use of the same ideas in larger devices. “

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