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Quantum computing advance unlocks technology’s potential

Quantum computing advance unlocks technology’s potential

Quantum computers are powerful computing devices that have the potential to solve different types of computational problems in less time. Because of this, quantum computing has long been considered the next big thing in computing. For quantum computers to work, quantum bits, or qubits, the fundamental unit of information essential to their operation, must be fast and stable. Simple binary quantum states and various physical implementations represent qubits.

A potential candidate for qubit stabilization could be an unfree negatron floating during a vacuum. However, it’s typically troublesome to manage quantum states or trapped electrons. To overcome the limitations of qubits, researchers at the University of Tokyo have discovered potential solutions for advancing quantum computing.

Overcoming the restrictions of qubits for quantum calculating 

Researchers studied two hybrid quantum systems to solve the qubit problems: an electron-superconducting circuit and an ion-electron coupled system. Both systems were able to control the temperature and movement of the electron. Alto Osada, assistant professor at the University of Tokyo’s Komaba Science Institute, explained: “We found a way to cool and measure the motion of a levitated electron in a vacuum or a trapped electron, both in the 

 quantum regime.” With the possibility of control, the motion of trapped electrons at the quantum level makes the trapped electron more promising and attractive for quantum technology applications, such as B. Quantum Computers.”

In their proposed quantum computing solution, the researchers included an electron trapped in a vacuum, a so-called Paul trap, which interacts with superconducting circuits, and a trapped ion. Because the ions are positively charged, and the electrons are negatively charged, they move toward each other. Others when sticking together due to the phenomenon called Coulomb attraction.

The interactions between the electron and the circuit and between the electron and the ion were powerful because of the light mass of the electron. The team also discovered that the electron’s temperature could be controlled using microwave fields and optical lasers.

The researchers measured their results with the phonon mode.

The researchers also used the electrode’s phonon mode to measure the success of their calculations. The phonon is the unit of energy that characterizes a vibration, or in this case, the pulse of the trapped electron. The researchers achieved the desired result, a single phonon readout and ground state cooling, with the two hybrid systems they analyzed. “High-precision and high-efficiency quantum operations are available in the trapped-electron system,” Osada said. “This novel system is manifesting as a new field for developing quantum technologies. More research is needed to ensure that these methods can be applied to quantum computing.

The researchers noted that further experimental research is needed to see if their methods can be implemented and applied to quantum computers. In the future, they want to prove their idea with a proof-of-concept experiment. “We plan to study our schemes using electrons trapped in a microwave cavity,” Osada said. “Through this research, we can take another step toward precise quantum operations and implementing quantum computers” make.

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