Looking ahead, researchers note that additional experimental research will need to be done to see if their methods can be implemented and applied to quantum computing. "This novel system manifests itself as a new playground for the development of quantum technologies." "Highly efficient and high-fidelity quantum operations are available in the trapped-electron system," said Osada. Researchers were able to accomplish these through their two hybrid systems they analyzed. Ground-state cooling refers to the frozen state of the electron. The desirable result was a single-phonon readout and ground-state cooling. Phonon refers to a unit of energy that characterizes a vibration, or, in this case, the oscillation of the trapped electron. They also found that they were able to control the temperature of the electron using microwave fields and optical lasers.Īnother important metric that the researchers used to measure the success of their calculations was the phonon mode of the electron. Because the electron has such a light mass, the interactions between the electron and circuit and the electron and the ion were particularly strong. Because ions are positively charged and electrons are negatively charged, when they are trapped together, they move toward each other because of a phenomenon called Coulomb attraction. The proposed systems that the researchers focused on included an electron trapped in a vacuum called a Paul trap interacting with superconducting circuits and a trapped ion. "With the feasibility of quantum-level control of the motion of trapped electrons, the trapped electron becomes more promising and attractive for quantum-technology applications, such as quantum computing." "We found a way to cool down and measure the motion of an electron levitated in a vacuum, or a trapped electron, both in the quantum regime," said Assistant Professor Alto Osada at the Komaba Institute for Science at the University of Tokyo. Both systems were able to control the temperature and the movement of the electron. They looked at two different hybrid quantum systems: an electron-superconducting circuit and an electron-ion coupled system. In a paper published in Physical Review Research, researchers identified possible solutions to some of the limitations of qubits for quantum computing. However, controlling the quantum states, especially the vibrational motions, of trapped electrons can be difficult. One promising candidate is a trapped electron that levitates in a vacuum. Qubits are represented both by simple binary quantum states and by various physical implementations.
0 Comments
Leave a Reply. |