New Benchmark Helps Solve the Hardest Quantum Problems
New Benchmark Helps Solve the Hardest Quantum Problems
A large collaboration of scientists, led by Giuseppe Carleo at EPFL has now developed a new benchmark called the "V-score" to tackle this issue. The V-score ("V" for "Variational Accuracy") offers a consistent way to compare how well different quantum methods perform on the same problem. The V-score can be used to identify the hardest-to-solve quantum systems, where current computational methods struggle, and where future methods—such as quantum computing—might offer an advantage.
Qunova Reports Achieving ‘Chemical Accuracy’ on Commercial Quantum Computers With Hardware Agnostic Algorithm
Qunova Reports Achieving ‘Chemical Accuracy’ on Commercial Quantum Computers With Hardware Agnostic Algorithm
Qunova Computing, a developer of quantum software applications designed to bring quantum computing to the chemical, pharmaceutical and industrial engineering industries, today announces the results from a series of recent tests performed on three different NISQ era quantum computers, each with a different qubit count. In each demonstration, Qunova’s algorithm was able to produce results with accuracy below the threshold of 1.6 millihartrees required for real-world quantum chemistry applications, a level known as ‘chemical accuracy’. This marks the first time this has been achieved on a commercially available device.
Creating Stable Entanglement Through Quantum Reservoir Engineering
Creating Stable Entanglement Through Quantum Reservoir Engineering
A recent collaboration between the University of Illinois and the University of Chicago addresses this problem by using the using the environment as a help, instead of a hindrance. In using the environment of superconducting qubits, sometimes referred to as a reservoir, the researchers show that more stable entanglement can be created.
Quantum Research Paves the Way Toward Efficient, Ultra-High-Density Optical Memory Storage
Quantum Research Paves the Way Toward Efficient, Ultra-High-Density Optical Memory Storage
Now, researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory and the University of Chicago Pritzker School of Molecular Engineering (PME) have proposed a new type of memory, in which optical data is transferred from a rare earth element embedded within a solid material to a nearby quantum defect. Their analysis of how such a technology could work is published in Physical Review Research.
Quantum Research Paves the Way Toward Efficient, Ultra-High-Density Optical Memory Storage
Quantum Research Paves the Way Toward Efficient, Ultra-High-Density Optical Memory Storage
Researchers from Argonne and the University of Chicago combined classical physics with quantum modeling to show how rare-earth elements and defects within solids can interact to store optically encoded classical data.
Quantum Entanglement Between Electronic and Motional States in Cold-Atom Quantum Simulator
Quantum Entanglement Between Electronic and Motional States in Cold-Atom Quantum Simulator
Researchers in the Institute for Molecular Science revealed the quantum entanglement between electronic and motional states in their “ultrafast quantum simulator,” generated by the repulsive force due to the strong interaction between Rydberg atoms. They also propose a new quantum simulation method including repulsive force between particles. This achievement is published August 30th in Physical Review Letters.
Going Beyond Energy: Ground-State Properties Unlocked in a Certifiable and Scalable Way
Going Beyond Energy: Ground-State Properties Unlocked in a Certifiable and Scalable Way
A team of researchers theoretically obtain, for the first time, certifiable bounds on many-body ground-state properties beyond the energy with competitive performance. The resulting method is general and scalable.
CQT Scientists Achieve an Average Quantum Efficiency of 76.4% for the First Time Using a Single Photon Emitter Made From 2D Materials
Recently, an international team of researchers led by Singapore's CQT has come close with a single photon emitter made from two-dimensional materials and successfully suppressed non-radiative decay of localised exciton in these materials for the first time. In this study, researchers constructed the emitter using monolayer tungsten diselenide (WSe2), which is only one atom thick and generated excitons in excited states using lasers. As the exciton decays back to the ground state, it could randomly undergo either radiative or non-radiative decay.
QUANTUMWIRE.COM
Novel Method Enhances Size-Controlled Production of Luminescent Quantum Dots
Novel Method Enhances Size-Controlled Production of Luminescent Quantum Dots
In a study conducted at the University of São Paulo and described in Scientific Reports, the diameter of semiconductor quantum dots was monitored in real time via the wavelength of the emitted light.
Italian Scientists Have Created an Ultracold Molecular Gas With Strong Magnetic Dipoles
Recently, scientists from the Matteo Zaccanti of the Italian National Institute of Optics have created a dense gas composed of lithium-chromium (LiCr) molecules at a temperature of 200 nanokelvin. This gas consists of ultracold molecules with strong magnetic dipoles. The researchers say that transferring the molecules to their absolute ground state, expecting to create a doubly polar molecule Bose-Einstein condensate with both electric and magnetic dipole moments. These dipolar molecules could potentially lead to new quantum simulation and quantum computing schemes.
QUANTUMWIRE.COM
NewsFlash
September 12, 2024
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DARPA Eyes Companies Targeting Industrially Useful Quantum Computers
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Signature of the Procurement Contract for the EuroHPC Quantum Computer Located in Italy
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ETSI Launches New Standard for Quantum-Safe Hybrid Key Exchanges to Secure Future Post-Quantum Encryption
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World’s First Successful Demonstration of Quantum Key Distribution Technology for Multiplexing Over 30 Tbps of High-Capacity Data and Secret Keys