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Healing an Achilles' heel of quantum entanglement

Researchers have developed a new method to calculate the exact entanglement cost of a given quantum state, allowing for more precise measurement and application in various quantum research areas. This breakthrough resolves a longstanding investigation in entanglement theory, enabling efficient computation and broad applicability.

SourceLouisiana State University·JournalPhysical Review Letters·DateJul 29, 2020

Is quantum computing scalable?

Quantum computing aims to break cryptography and speed up database search, but scaling is a significant challenge. Researcher Debbie Leung discusses the ingredients required for accurate quantum computing operations and recent progress with error-correcting codes.

SourceCIFAR·DateFeb 16, 2019

The right squeeze for quantum computing

Scientists at Hokkaido University have developed a theoretical approach to quantum computing that uses light squeezing to dramatically reduce errors. This new method is ten billion times more tolerant of errors than current experimental methods, bringing us closer to developing ultra-accurate quantum computers.

SourceHokkaido University·JournalPhysical Review X·DateMay 31, 2018

Physicists breeding Schroedinger cat states

Researchers at CIFAR have successfully bred Schrödinger cat states in optics, amplifying classical states of light beyond microscopic limits. This breakthrough could lead to applications in quantum communication, teleportation, and cryptography.

SourceCIFAR·JournalNature Photonics·DateMay 1, 2017

Particle zoo in a quantum computer

Researchers at University of Innsbruck successfully simulated lattice gauge theories and particle-antiparticle pairs using a quantum computer. This breakthrough paves the way for studying complex aspects of the Standard Model, complementing high-energy physics experiments.

SourceUniversity of Innsbruck·JournalNature·DateJun 22, 2016

New research signals big future for quantum radar

Researchers have developed a hybrid quantum radar system that uses microwave-optical entanglement to detect cancer cells and stealth aircraft. The device operates at lower energies than conventional systems, enabling long-term potential for non-invasive medical applications such as NMR scans.

SourceUniversity of York·JournalPhysical Review Letters·DateFeb 26, 2015

Putting the squeeze on quantum information

Researchers at CIFAR have developed a method to compress quantum information into fewer qubits while preserving its content. This breakthrough has significant implications for efficient quantum computing and communication.

SourceCIFAR·JournalPhysical Review Letters·DateSep 25, 2014

Record quantum entanglement of multiple dimensions

Researchers from Universitat Autonoma de Barcelona have achieved a groundbreaking quantum entanglement with a minimum of 103 dimensions using only two particles. This breakthrough enables the creation of highly complex states that can facilitate experimental development of quantum computers and enhance cryptography security.

SourceUniversitat Autonoma de Barcelona·JournalProceedings of the National Academy of Sciences·DateMar 27, 2014