Neural Network based Decoders for the Surface Code

Quantum error correction (QEC) is key to have reliable quantum computation and storage, due to the fragility of qubits in current quantum technology and the imperfect application of quantum operations. In order to have efficient quantum computation and storage, active QEC is required. QEC consists of an encoding and a decoding process. The way...

Code deformation and lattice surgery are gauge fixing

The large-scale execution of quantum algorithms requires basic quantum operations to be implemented fault-tolerantly. The most popular technique for accomplishing this, using the devices that can be realized in the near term, uses stabilizer codes which can be embedded in a planar layout. The set of fault-tolerant operations which can be...

Mapping of Lattice Surgery-based Quantum Circuits on Surface Code Architectures

Quantum error correction (QEC) and fault-tolerant (FT) mechanisms are essential for reliable quantum computing. However, QEC considerably increases the computation size up to four orders of magnitude. Moreover, FT implementation has specific requirements on qubit layouts, causing both resource and time overhead. Reducing spatial-temporal costs...

Distributed quantum memory using NV centers

There are still great hurdles to overcome in the construction of a practical quantum computer. Most significantly, there is still great need for less noisy operation devices and the ability to scale the computer into hundreds or thousands of qubits. In this work we study a approach to construct a practical quantum computer which is fundamentally...