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Physicists have discovered a potentially game-changing feature of quantum bit behavior which would allow scientists to simulate complex quantum systems without the need for enormous computing power.
For some time, the development of the next generation of quantum computer has limited by the processing speed of conventional CPUs. These systems are capable of performing many calculations at once, but are significantly slower than what present day quantum computers require – giving scientists a significant difficulty in proving how these systems function.
Nikolay Delgov of the University of Southern Denmark in Odense designed a new way to solve the total internal reflection (TIR) problem – an integral part of many quantum algorithms – and demonstrated an hasher which reduces the number of stages to a minimum.
"There exists a computational problem that is related to the TIR problem and it is characterised by a non-standard form of entanglement which we have proved addresses it," explains Delgov. "With this technique, we have made this possible and so minimized another type of trouble encountered in implementing quantum algorithms. We have demonstrated a suitable algorithm for testing our approach for any general quantum problem."
Optical communication with quantum computers at large scales
At the heart of a computation, an interworking of data and quantum bits calls for communication from quantum information machines to the rest of the world. Physicists refer to this as interferometry.
"We have real work to do to understand exactly what happens in these interworking processes and how this is ensured by error correction," adds Delgov. These errors only grow exponentially when the number of steps and the parameters of the communication protocol become large.
"If we 'broadcast' these errors out to our peers on a quantum network, our results would be strongly biased," says Delgov, highlighting the inherent danger included in engineering devices designed to avoid TIR. "Nevertheless there are indications that this area is bright or probably even possible to address this question using our method."
The new scheme is useable for small devices, but the efficiency with which it achieves the shared photon correction is in desperate need of improvement. Delgov, Dr Aakkok and their colleagues will implement the further refinement of the device using optical and Bell fields.
To date, the team has demonstrated communication of one bit and one bit with a quantum device, but the implications for the success of future trials are far-reaching. "In addition to the work in Bell States, it would be interesting to take a look at the limits of quantum machine communication systems," says Delgov. "But the important thing is not simply to increase the size or data capacity of our experiments."
Source: pdf
Abstract Treatment adjustments for reflected surveillance forces will increase with days remaining in 2018. Influence assessment in 2018 should be conducted with IS
Physicists have discovered a potentially game-changing feature of quantum bit behavior which would allow scientists to simulate complex quantum systems without the need for enormous computing power.
For some time, the development of the next generation of quantum computer has limited by the processing speed of conventional CPUs. These systems are capable of performing many calculations at once, but are significantly slower than what present day quantum computers require – giving scientists a significant difficulty in proving how these systems function.
Nikolay Delgov of the University of Southern Denmark in Odense designed a new way to solve the total internal reflection (TIR) problem – an integral part of many quantum algorithms – and demonstrated an hasher which reduces the number of stages to a minimum.
"There exists a computational problem that is related to the TIR problem and it is characterised by a non-standard form of entanglement which we have proved addresses it," explains Delgov. "With this technique, we have made this possible and so minimized another type of trouble encountered in implementing quantum algorithms. We have demonstrated a suitable algorithm for testing our approach for any general quantum problem."
Optical communication with quantum computers at large scales
At the heart of a computation, an interworking of data and quantum bits calls for communication from quantum information machines to the rest of the world. Physicists refer to this as interferometry.
"We have real work to do to understand exactly what happens in these interworking processes and how this is ensured by error correction," adds Delgov. These errors only grow exponentially when the number of steps and the parameters of the communication protocol become large.
"If we 'broadcast' these errors out to our peers on a quantum network, our results would be strongly biased," says Delgov, highlighting the inherent danger included in engineering devices designed to avoid TIR. "Nevertheless there are indications that this area is bright or probably even possible to address this question using our method."
The new scheme is useable for small devices, but the efficiency with which it achieves the shared photon correction is in desperate need of improvement. Delgov, Dr Aakkok and their colleagues will implement the further refinement of the device using optical and Bell fields.
To date, the team has demonstrated communication of one bit and one bit with a quantum device, but the implications for the success of future trials are far-reaching. "In addition to the work in Bell States, it would be interesting to take a look at the limits of quantum machine communication systems," says Delgov. "But the important thing is not simply to increase the size or data capacity of our experiments."
Source: pdf
Abstract Treatment adjustments for reflected surveillance forces will increase with days remaining in 2018. Influence assessment in 2018 should be conducted with IS
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