Scientists from the NE Bauman Moscow State Technical University and the AM Prokhorov Institute of General Physics have developed a laser setup capable of generating up to 14 ultrashort laser pulses combined into soliton molecules. These molecules are stable structures consisting of several pulses interacting with each other. By passing such molecules through a nonlinear medium such as crystals, it is possible to create compressed entangled states that can be used in quantum computing.
The main task of scientists is to create large numbers of such molecules for quantum computers. Unlike ordinary qubits, which lose connection as their number increases, soliton molecules are fault-tolerant due to their stability, which allows them to maintain an entangled state. As Ilya Orekhov, an engineer at MSTU, explains, based on this technology it is planned not only to improve quantum computing, but also to develop new laser systems for other applications, such as dermatology.
A standard laser diode is used as the energy source of the laser. Its radiation passes through a ring fiber resonator, creating stable molecules. Scientists were able to regulate the number of molecules, opening up hopes for scaling this technology in the future. According to Orekhov, further research will experimentally verify the ability of such molecules to self-read noise, making them even more suitable for practical use. in quantum computing.
Source: Ferra
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