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Highly Stable, Squeezed Schrödinger Cats Hold Promise for Quantum Computers

Highly Stable, Squeezed Schrödinger Cats Hold Promise for Quantum Computers

Quantum physics is full of fascinating phenomena. Take, for instance, the cat from the famous thought experiment by the physicist Erwin Schrodinger. The cat can be dead and alive at once, since its life depends on the quantum mechanically determined state of a radioactively decaying atom which, in turn, releases toxic gas into the cat's cage. As long as one hasn't measured the state of the atom, one knows nothing about the poor cat's health either - atom and kitty are intimately "entangled" with each other. [More]
Researchers Develop New Quantum Error Correcting Code

Researchers Develop New Quantum Error Correcting Code

Quantum computers are largely theoretical devices that could perform some computations exponentially faster than conventional computers can. Crucial to most designs for quantum computers is quantum error correction, which helps preserve the fragile quantum states on which quantum computation depends. [More]
Swing-Dancing' Electrons Could Help Develop New Quantum Devices

Swing-Dancing' Electrons Could Help Develop New Quantum Devices

A research team led by the University of Pittsburgh's Jeremy Levy has discovered electrons that can "swing dance." This unique electronic behavior can potentially lead to new families of quantum devices. [More]
Researchers Design and Operate Working Superconducting Qubit Devices

Researchers Design and Operate Working Superconducting Qubit Devices

Professor Oleg Astafiev, jointly appointed Professor at Royal Holloway and Visiting Professor at the National Physical Laboratory (NPL), and his team of researchers, have designed, built and operated the first working superconducting qubit devices in the UK. [More]
Topological State of New Family of Materials can be Observed Directly

Topological State of New Family of Materials can be Observed Directly

They are 'strange' materials, insulators on the inside and conductors on the surface. They also have properties that make them excellent candidates for the development of spintronics ('spin-based electronics') and more in general quantum computing. However, they are also elusive as their properties are extremely difficult to observe. [More]
A Single Nuclear Spin Could Possibly be Detected at Room Temperature

A Single Nuclear Spin Could Possibly be Detected at Room Temperature

For the first time, a researcher at the University of Waterloo has theoretically demonstrated that it is possible to detect a single nuclear spin at room temperature, which could pave the way for new approaches to medical diagnostics. [More]
Whitewood Encryption Systems Awarded Patent for Miniaturization of Quantum Key Technology

Whitewood Encryption Systems Awarded Patent for Miniaturization of Quantum Key Technology

Whitewood Encryption Systems, Inc., a developer of next-generation systems of data encryption that leverage advanced cryptography technologies emerging from U.S. centers of research excellence, announced today that the U.S. Patent and Trademark Office (USPTO) has issued U.S. Patent No. 9,002,009 with claims covering miniaturized hardware that can be fabricated at-scale to facilitate secure multi-party quantum cryptography and secure all types of communications. [More]
Novel Microfabricated Ion Trap Architecture Could Help Increase Qubit Densities for Quantum Computers

Novel Microfabricated Ion Trap Architecture Could Help Increase Qubit Densities for Quantum Computers

Quantum computers are in theory capable of simulating the interactions of molecules at a level of detail far beyond the capabilities of even the largest supercomputers today. [More]
Two Critical Advances Towards Realization of a Quantum Computer

Two Critical Advances Towards Realization of a Quantum Computer

IBM scientists today unveiled two critical advances towards the realization of a practical quantum computer. For the first time, they showed the ability to detect and measure both kinds of quantum errors simultaneously, as well as demonstrated a new, square quantum bit circuit design that is the only physical architecture that could successfully scale to larger dimensions. [More]
New Mathematical Proof Reveals a Much Tighter Limit on How Fast Quantum Information Can Propagate

New Mathematical Proof Reveals a Much Tighter Limit on How Fast Quantum Information Can Propagate

If you’re designing a new computer, you want it to solve problems as fast as possible. Just how fast is possible is an open question when it comes to quantum computers, but JQI physicists have narrowed the theoretical limits for where that “speed limit” is. The work implies that quantum processors will work more slowly than some research has suggested. [More]