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Researchers build the first modular quantum brain sensor and record signals

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A team of scientists at the University of Sussex built the first modular quantum brain scanner and used it to record brain signals. It is the first time in the world that a brain signal has been detected using a modular quantum brain sensor. This is a major milestone for all researchers working on quantum brain imaging technology, as modular sensors can be scaled up like Lego blocks. The team also connected two sensors, such as Lego blocks, and proved that scanning the entire brain using this method was within reach. This was not possible with the US quantum brain sensors currently on the market.


These modular devices act like blocks of play in that they can be interconnected. This opens up the whole possibility.brain Scans using quantum technology, and potential advances in neurodegenerative diseases such as Alzheimer’s disease.

Devices built in the university’s Quantum Systems and Devices Laboratory use ultra-sensitive quanta. sensor To map neural activity, we pick up these smallest magnetic fields and look inside the brain.

The team installed the sensor outside the participant’s scalp, near the visual cortex of the brain. They had participants open and close their eyes every 10 to 20 seconds and were able to detect the signal. This is a very simple operation, but it requires very advanced quantum technology to see what is happening inside the brain from the outside.

A student at the University of Sussex, who developed the Thomas Coussens Ph.D. sensor, explains:

“Our quantum sensor needs to be very sensitive to pick up a very weak magnetic field in the brain. Understanding the situation, the magnetic field in the brain is one trillionth of the magnetic field in the refrigerator magnet.

“Our device is more unique than ever in that it is modular, and we have shown that modularity works by connecting two sensors, so we translate this into a brain-wide imaging system. We plan to scale up this project by building more sensors to do this, which could bring significant advances in the detection and delivery of treatment for neurodegenerative diseases such as Alzheimer’s disease.

“This is the culmination of months of hard work. Brain signal We use a unique quantum sensor built entirely by us here at the University of Sussex. ”

Professor Peter Kruger, an experimental physicist at the University of Sussex and director of the Sussex Quantum Research Program, explains:

“Our sensors work modularly, so we can scale them up to create more detailed images of the brain or parts of the brain. Today’s commercial products can’t do that. This new sensor, built at the University of Sussex, opens the door for quantum sensors manufactured in the UK. This is very important in the broader UK quantum technology outlook.

“Having this sensor is a major step towards further interdisciplinary research involving researchers from consciousness scientists and engineers to neuroscientists.

Professor Kai Bongs, Principal Investigator at UK Quantum Technology Hub Sensors and Timing, said:

“We are pleased with this groundbreaking development by the University of Sussex’s hub researchers. These successes have contributed significantly to the UK’s quantum ecosystem, and in real life social. We are one step closer to leveraging quantum sensor technology in impactful clinical applications .. Building powerful quantum brain imaging capabilities in the UK is a great example of our collaboration. ”

Quantum magnetic sensors use magnetometers that are optically pumped inside the magnetic shield to reduce the environmental magnetic fields and prevent them from being detected. Simply put, the sensor works by putting the vapor into a quantum state, shining a laser beam on it, and using a photodetector to see how much light has passed. How sensitively atomic vapors interact with laser light magnetic fieldA small electric current in a neuron in the brain also creates a very small magnetic field outside the brain, which the sensor detects.


Magnetic brain waves that detect injuries and illnesses


For more information:
Modular optical pumping magnetometer system. arxiv.org/abs/2106.05877 arXiv: 2106.05877v1 [physics.atom-ph]

Quote: Researchers built the first modular quantum brain sensor and obtained the signal obtained from https://phys.org/news/2021-06-modulear-quantum-brain-sensor.html on June 11, 2021. Record (June 11, 2021)

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Researchers build the first modular quantum brain sensor and record signals

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