Huge Development in Quantum Computing Market: Newly Developed Method Can Make Quantum State Topography More Efficient

  • Analysis
  • 02-July-2021

Quantum simulators help process a huge amount of information by quantum mechanically superimposing on many bit states. In the coming years, next-generation quantum simulators might potentially provide insights without using simulations on traditional supercomputers. However, the feat is hard to achieve as, at the same time, it is hard to read information out of a quantum simulator. To reconstruct the quantum state, there is a requirement for a large amount of individual measurements.
The method utilized to read out the quantum state of the quantum simulator is known as quantum state topography. The process involves each measurement to provide the quantum state’s “cross-sectional image.” The cross-sectional images are then put together to form the complete quantum state. The problem is that number of measurements needed increases rapidly with the size of the system.
To solve this issue, a researchers group has discovered a method that would allow quantum state tomography to be more efficient by being able to perform with considerably fewer measurements. The innovation might turn out to be a huge development for Quantum Computing Market as it will also enable measuring of quantum states’ properties that could not be observed previously. Furthermore, the new method will bring forth new insights into the structure of the quantum states that need to be obtained.
The most intriguing research aspect is that it is not very clear whether prediction from the quantum field theory would be applicable to the present quantum simulation experiments. The quantum field theory refers to the basic framework of the quantum state within the quantum simulator. Then, only a few measurements would be required to fit the details into the basic framework. Accordingly, researchers have developed a new measurement protocol by which quantum tomography will become less arduous as the number of measurements would be reduced.
The group also developed a verification protocol two years before that might now come in use to check if the structure of the quantum state actually imitates the expectations put upon by the quantum field theory. The team stated that further random measurements could be used to check if the basic framework tomography actually fits or is entirely wrong.
The protocol would raise a red flag in case the framework did not fit. The findings presented in the new study would be fascinating for most physicists as it could provide essential clues to the quantum field theory, which has not yet been completely understood by the scientific fraternity. At present, the team is further delving into developing protocols within which the basic framework of the quantum state would not need to be stored on a classical computer but can be realized immediately on the quantum simulator.
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