Russian experts continue to work on the creation of so-called quantum computer, The first practical experience in a project which has been demonstrated a few months ago. In this process the future work of the computer constantly contacted by microwave electromagnetic radiation (high frequency).
Physicists from the Moscow Physical-Technical University, and MISA and other universities to present an alternative based on the work of the electromagnetic quantum computer (KK). Together with colleagues from the UK, have developed the principle of operation of a quantum system, wherein the data storage element CC (so-called qubit) interacts not with the electromagnetic waves, and the acoustic wave. We are talking about cooperation in a specially designed resonator.
scientists say, that the possibility of interaction between the "elements of quantum optics - acoustic elements" can be used in the future for the development of ideas, related to the implementation of the ambitious project of the quantum computer. stated, that the acoustic approach to the implementation of the project has a number of advantages over the exploited up to this point only the quantum model QC.
What is the essence of the proposal? She - is, that the working chip is presented in the form of a piezoelectric quartz coated aluminum base with schemes and so-called TransMONEE.
For reference: TransMONEE - type superconducting charge qubit, designed to reduce the sensitivity to the "noise" of the charge effect. TransMONEE reaches its low sensitivity to noise charge, significantly increasing the ratio of the Josephson energy of the charging energy. This is achieved through the use of high-capacity bypass capacitor. The concept was developed by American scientists in 2007 year.
Besides, circuit includes an emitter, receiver and said resonator, consisting of a pair of mirrors, reflecting a certain wavelength.
acoustic waves, traveling from the mirror to the mirror in the cavity, while on the surface there are solid foundations.
The whole structure is cooled to a temperature in the cryostat, which tends to absolute zero (to a few mK – milliKelьvin). This raises questions in terms of the use of QC parameters in normal conditions.
TransMONEE with two energy levels, between them and the transitions, in this situation demonstrates the behavior, characteristic of the atom. In this way, scientists say, We received an artificial version of the atom, which can be controlled. Management connected to transmit energy qubit, translating the system in a state of "quantum excitation". Then, a controlled energy radiation may be performed with a certain frequency. In this way, It can be used to read information from a qubit by metering characteristics of waves in the cavity.
With all, it would seem, scientific breakthrough with quantum computers, have their own concept of quantum Achilles heel. It is related to the size of the resonator. The larger the size of the resonator, the larger defects on the surface of the crystal used. However, the new discovery makes it possible, It is believed to Russian and British scientists, create resonator high uniformity in size of several hundreds of micrometers - is substantially less than the system, which are used exclusively quantum principles. A, respectively, and the groundwork for memory and performance is also higher. On the other hand, problem in the acoustic wave propagation velocity, which, It is known by more than substantially lower light. Yet experts note, that a quantum computer could eventually prove to be "a quantum-acoustic" – by taking into account all the advantages of two principles of operation.
