Table of Contents
What is fault tolerance in quantum computing?
In quantum computing, the quantum threshold theorem (or quantum fault-tolerance theorem) states that a quantum computer with a physical error rate below a certain threshold can, through application of quantum error correction schemes, suppress the logical error rate to arbitrarily low levels.
Is fault tolerant quantum computation really possible?
Fault-tolerant universal computation is possible with four extra qubits, 19 in total. The procedures could enable testing more sophisticated protected circuits in small-scale quantum devices. Our main technique is to use gadgets to protect gates against correlated faults.
Which company offers a high performance fault tolerant quantum computer?
We heard quite about this fault tolerant aspect at the International Supercomputing Conference (ISC) this year when Google Cloud Technical Director, Kevin Kissell, described the evolution of the company’s 22-qubit “Foxtail” quantum architecture and most recent 72-quit “Bristlecone” design which emphasizes fault …
What is topological quantum?
Quantum topology is a branch of mathematics that connects quantum mechanics with low-dimensional topology. Topological entanglement involving linking and braiding can be intuitively related to quantum entanglement.
Can quantum entanglement send information?
Quantum Entanglement: “Spooky Action at a Distance” However, even though entangled quantum particles seem to interact with each other instantaneously -regardless of the distance, breaking the speed of light – with our current understanding of quantum mechanics, it is impossible to send data using quantum entanglement.
What is meant by fault tolerance?
Fault tolerance is a process that enables an operating system to respond to a failure in hardware or software. This fault-tolerance definition refers to the system’s ability to continue operating despite failures or malfunctions.
What is Surface code?
Surface codes are building blocks of quantum computing platforms based on 2D arrays of qubits responsible for detecting and correcting errors. The error suppression achieved by the surface code is usually estimated by simulating toy noise models describing random Pauli errors.
What is a cat qubit?
The cat qubit encodes an effective qubit into superpositions of two states within a single electronic circuit — in this case a superconducting microwave resonator whose oscillations correspond to the two states of the cat qubit.
How does a topological quantum computer work?
Topological quantum computing seeks to implement a more resilient qubit by utilizing non-Abelian forms of matter to store quantum information. Then, operations (what we may think of as quantum gates) are performed upon these qubits through “braiding” the worldlines of the anyons.