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Search results for “Quantum Physics”

1,000+ results for "Quantum Physics"

RMIT researchers make leap in measuring quantum states

A breakthrough in quantum tomography has been achieved by RMIT researchers, demonstrating a new technique that significantly reduces resources and improves robustness against noise. This innovation enables the characterisation of large quantum states, a critical bottleneck in quantum information science.

SourceRMIT University·JournalPhysical Review Letters·DateJul 21, 2016

Entanglement: Chaos

Researchers at UCSB have uncovered a link between classical chaos and quantum entanglement using controllable quantum systems. Their findings suggest that thermalization is the driving force behind both chaos and entanglement in quantum systems, with implications for quantum computing.

SourceUniversity of California - Santa Barbara·JournalNature Physics·DateJul 12, 2016

Building a better bowtie

Researchers created bowtie-shaped silver nanoparticles to study quantum phenomena, enabling strong coupling between photons and single quantum systems. The ability to control this coupling could lead to the development of more powerful computing and encryption devices.

SourceWeizmann Institute of Science·JournalNature Communications·DateJul 3, 2016

Controlling quantum states atom by atom

A team of researchers has developed a method to precisely alter the quantum mechanical states of electrons in an array of quantum boxes. This allows for the investigation of interactions between various types of atoms and electrons, crucial for advancing quantum technologies.

SourceUniversity of Basel·JournalSmall·DateJun 9, 2016

New design of primitive quantum computer finds application

Scientists at the University of Bristol have developed a new method to simulate a 'quantum walk' on a primitive quantum computer, which they claim can solve problems that classical computers cannot. The study suggests that these smaller quantum processors could outperform classical computing for specific tasks, such as 'Boson Sampling'.

SourceUniversity of Bristol·JournalNature Communications·DateMay 10, 2016

Unlocking the gates to quantum computing

Researchers from Griffith University have successfully implemented a simplified version of the quantum Fredkin gate, a challenging circuit that enables efficient processing in quantum computers. This achievement could lead to more powerful and compact quantum computing systems.

SourceGriffith University·JournalScience Advances·DateMar 25, 2016

Three 'twisted' photons in 3 dimensions

Researchers have achieved a new milestone in quantum physics by entangling three particles of light in a high-dimensional quantum property. This breakthrough has the potential to revolutionize quantum encryption and secure communication, enabling multiple parties to share information with unconditional security.

SourceUniversity of Vienna·JournalNature Photonics·DateFeb 29, 2016

Mechanical quanta see the light

Researchers at University of Vienna develop nanomechanical device that converts quantum vibrations to light, paving the way for a future quantum Internet. The device allows for connection between different quantum systems, enabling global exchange of quantum information.

SourceUniversity of Vienna·JournalNature·DateJan 19, 2016

A step towards quantum electronics

Researchers connected two materials with unusual quantum-mechanical properties through a quantum constriction, enabling clean materials with intriguing quantum-mechanical properties. This collaboration opens up a new research direction for ultrafast and robust electronic networks.

SourceUniversité de Genève·JournalScience·DateDec 17, 2015

Upgrading the quantum computer

Researchers at University of Innsbruck propose new quantum computer architecture that detaches logical qubit from physical implementation, overcoming challenges in adiabatic quantum computation. This approach enables scalable and fault-tolerant quantum computing.

SourceUniversity of Innsbruck·JournalScience Advances·DateOct 23, 2015

Quantum computing advance locates neutral atoms

Researchers at Penn State have developed a method for addressing individual neutral atoms using laser light, enabling the creation of quantum computers. The technique allows for precise control over qubits and enables quantum computing applications such as factoring large numbers used in secure codes.

SourcePenn State·JournalPhysical Review Letters·DateAug 12, 2015

Good quantum states and bad quantum states

Scientists from TU Wien and Free University of Berlin developed a quantum tomography method to measure and describe large quantum systems precisely with few measurements. This technique uses continuous matrix product states, which represent a vanishingly small fraction of all possible states but are physically important.

SourceVienna University of Technology·JournalNature Communications·DateJul 3, 2015

Quantum teleportation on a chip

Researchers at the University of Bristol have successfully integrated quantum teleportation circuits onto a photonic chip, overcoming scalability limitations. This breakthrough enables the development of ultra-high-speed quantum computers and strengthens communication security.

SourceUniversity of Bristol·JournalNature Photonics·DateApr 1, 2015

Next important step toward a quantum computer

Researchers from the University of Bonn and Cambridge successfully linked two different quantum systems, quantum dots and ions, to work together as a team. This hybrid system combines the strengths of both components, enabling faster calculations and improved memory storage.

SourceUniversity of Bonn·JournalPhysical Review Letters·DateMar 30, 2015

Quantum optical hard drive breakthrough

A team of physicists at Australian National University has improved storage time by a factor of over 100, achieving a record six-hour storage time. This breakthrough is expected to revolutionize the transmission of quantum information and enable the creation of a secure worldwide data encryption network.

Nanoscale resistors for quantum devices

Researchers have created high-value, compact nanoscale resistors using thin-film chromium oxide, enabling faster development of quantum devices for computing and fundamental physics research. The new resistors can be tuned by controlling oxygen content, making them compatible with quantum phase-slip circuit requirements.

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateDec 9, 2014

Quantum holograms as atomic scale memory keepsake

Researchers from St. Petersburg State University developed a theoretical model for quantum memory in light, adapting classical hologram concepts to a quantum system. They demonstrated the possibility of retrieving specific portions of stored quantized light signals with precise control over space and time.

SourceSpringer·JournalThe European Physical Journal D·DateOct 21, 2014

Quantum environmentalism

Scientists at the Cavendish Laboratory and Joint Quantum Institute create a new type of qubit control that leverages its surroundings to maintain quantum integrity. By harnessing the environment's magnetic field, they enable efficient manipulation and readout of quantum states, paving the way for quantum computing advancements.

SourceJoint Quantum Institute·JournalNature Physics·DateOct 1, 2014

Making quantum dots glow brighter

Researchers have discovered a way to control the properties of quantum dots by using ultrathin layers of metal oxides. This new approach makes quantum dots glow brighter and enhances their emission efficiency, which is crucial for applications such as sensors, light-emitting diodes, and solar cells.

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateSep 16, 2014