Results 31 to 40 of about 2,043 (254)

Generalizing the matching decoder for the Chamon code [PDF]

Quantum
Different choices of quantum error-correcting codes can reduce the demands on the physical hardware needed to build a quantum computer. To achieve the full potential of a code, we must develop practical decoding algorithms that can correct errors that ...
Zohar Schwartzman-Nowik, Benjamin J. Brown   +1 more
doaj   +1 more source

Fault-tolerant simulation of Lattice Gauge Theories with gauge covariant codes [PDF]

Quantum
We show in this paper that a strong and easy connection exists between quantum error correction and Lattice Gauge Theories (LGT) by using the Gauge symmetry to construct an efficient error-correcting code for Abelian $\mathbb{Z_2}$ LGTs.
L. Spagnoli, A. Roggero, N. Wiebe
doaj   +1 more source

Error Correcting Codes in Quantum Theory

Physical Review Letters, 1996
Summary: A new type of uncertainty relation is presented, concerning the information-bearing properties of a discrete quantum system. A natural link is then revealed between basic quantum theory and the linear error correcting codes of classical information theory.
openaire   +3 more sources

Stabilizer Formalism for Operator Algebra Quantum Error Correction [PDF]

Quantum
We introduce a stabilizer formalism for the general quantum error correction framework called operator algebra quantum error correction (OAQEC), which generalizes Gottesman's formulation for traditional quantum error correcting codes (QEC) and Poulin's ...
Guillaume Dauphinais, David W. Kribs, Michael Vasmer   +2 more
doaj   +1 more source

Entanglement renormalization, quantum error correction, and bulk causality

Journal of High Energy Physics, 2017
Entanglement renormalization can be viewed as an encoding circuit for a family of approximate quantum error correcting codes. The logical information becomes progres-sively more well-protected against erasure errors at larger length scales. In particular,
Isaac H. Kim, Michael J. Kastoryano
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Superselection rules, quantum error correction, and quantum chromodynamics

Journal of High Energy Physics
We investigate the relationship between superselection rules and quantum error correcting codes. We demonstrate that the existence of a superselection rule implies the Knill-Laflamme condition in quantum error correction.
Ning Bao, ChunJun Cao, Aidan Chatwin-Davies, Gong Cheng, Guanyu Zhu   +4 more
doaj   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Stability of gapped quantum matter and error-correction with adiabatic noise

Physical Review Research
The codespace of a quantum error-correcting code can often be identified with the degenerate ground space within a gapped phase of quantum matter. We argue that the stability of such a phase is directly related to a set of coherent error processes ...
Ali Lavasani, Sagar Vijay
doaj   +1 more source

Measurement-free fault-tolerant logical-zero-state encoding of the distance-three nine-qubit surface code in a one-dimensional qubit array

Physical Review Research, 2023
Generation of logical zero states encoded with a quantum error-correcting code is the first step for fault-tolerant quantum computation but requires considerably large resource overheads in general.
Hayato Goto, Yinghao Ho, Taro Kanao
doaj   +1 more source