Computer Science Quantum computing

What actually happens is much weirder, and may help us understand more about quantum mechanics

Researchers from Osaka University have demonstrated a proof-of-concept for identifying single nucleotides by using quantum computing. Molecular rotation patterns—and the corresponding variations in conductance—within the nanoscale gap between two electrodes enabled the development of a quantum gate for the nucleotide adenosine monophosphate. Developing quantum gates for the other three nucleotides, and incorporating this technology into DNA sequencing workflows, could revolutionize genome analysis.

In a continuing effort to improve upon previous work, a research team at the Graduate School of Science, Osaka City University, have applied their recently developed Bayesian phase difference estimation quantum algorithm to perform full configuration interaction (full-CI) calculations of atoms and molecules without simulating the time evolution of the wave function conditional on an ancillary qubit. Superior to conventional methods in terms of parallel execution of quantum gates during quantum computing, this new algorithm is expected to be much easier to implement in actual quantum computers.

Researchers have developed a general quantum algorithm that can directly calculate the energy difference of an atom and molecule using a quantum computer. By avoiding the need to calculate the total molecular energies, the general algorithm is expected to be applied not only to quantum chemical calculations but also to various physical and mathematical problems, which are intractable with nowadays classical computers.

Combining two magnetic effects can manipulate the magnetic behaviours of a device, offering a novel opportunity for the next generation IT technologies.

Researchers improve their newly established quantum algorithm, bringing it to one-tenth the computational cost of Quantum Phase Estimation, and use it to directly calculate the vertical ionization energies of light atoms and molecules such as CO, O2, CN, F2, H2O, NH3 within 0.1 electron volts of precision.

A research team based in Japan may be moving toward a more controlled walk by unveiling the mechanism underlying the directional decision of each quantum step and introducing a way to potentially control the direction of movement.

Researchers at Osaka City University create a quantum algorithm that removes spin contaminants while making chemical calculations on quantum computers. This allows for predictions of electronic and molecular behavior with degrees of precision not achievable with classical computers and paves the way for practical quantum computers to become a reality.

Scientists in Korea explain a new process that maximizes photon conversion in 2D materials, which could innovate photonic-based applications

Project to explore new methodologies and use cases in the fields of quantum-inspired computing and artificial intelligence with the world’s 1st on-premises installation of Fujitsu Digital Annealer at SMU in Singapore.

Leading quantum computing experts from around the world have explored what the future holds for the field in a new special collection in the journal Quantum Science and Technology (QST).

A new theoretical model involving squeezing light to just the right amount to accurately transmit information using subatomic particles is bringing us closer to a new era of computing.

Although blockchain is traditionally seen as secure, it is vulnerable to attack from quantum computers.

A theoretical model will allow systematic study of a promising class of peculiar quantum states.

The Tohoku University research group of Professor Keiichi Edamatsu and Postdoctoral fellow Naofumi Abe has demonstrated dynamically and statically unpolarized single-photon generation using diamond.