Results 71 to 80 of about 369,878 (291)

Simple Rate-1/3 Convolutional and Tail-Biting Quantum Error-Correcting Codes

open access: yes, 2005
Simple rate-1/3 single-error-correcting unrestricted and CSS-type quantum convolutional codes are constructed from classical self-orthogonal $\F_4$-linear and $\F_2$-linear convolutional codes, respectively.
Forney, Jr., G. David, Guha, Saikat
core   +2 more sources

Entanglement Increases the Error-Correcting Ability of Quantum Error-Correcting Codes [PDF]

open access: yes, 2010
If entanglement is available, the error-correcting ability of quantum codes can be increased. We show how to optimize the minimum distance of an entanglement-assisted quantum error-correcting (EAQEC) code, obtained by adding ebits to a standard quantum ...
Brun, Todd, Lai, Ching-Yi
core   +2 more sources

Error Avoiding Quantum Codes [PDF]

open access: yesModern Physics Letters B, 1997
The existence is proved of a class of open quantum systems that admits a linear subspace [Formula: see text] of the space of states such that the restriction of the dynamical semigroup to the states built over [Formula: see text] is unitary. Such subspace allows for error-avoiding (noiseless) encoding of quantum information.
P. ZANARDI, RASETTI, Mario
openaire   +3 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Quantum Error Mitigation as a Universal Error Reduction Technique: Applications from the NISQ to the Fault-Tolerant Quantum Computing Eras

open access: yesPRX Quantum, 2022
In the early years of fault-tolerant quantum computing (FTQC), it is expected that the available code distance and the number of magic states will be restricted due to the limited scalability of quantum devices and the insufficient computational power of
Yasunari Suzuki   +3 more
doaj   +1 more source

A Construction of Quantum LDPC Codes from Cayley Graphs [PDF]

open access: yes, 2013
We study a construction of Quantum LDPC codes proposed by MacKay, Mitchison and Shokrollahi. It is based on the Cayley graph of Fn together with a set of generators regarded as the columns of the parity-check matrix of a classical code. We give a general
Couvreur, Alain   +2 more
core   +4 more sources

Nonbinary quantum stabilizer codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2001
6 ...
Ashikhmin, Alexei, Knill, Emanuel
openaire   +2 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Analog quantum error correction with encoding a qubit into an oscillator [PDF]

open access: yes, 2017
To implement fault-tolerant quantum computation with continuous variables, Gottesman-Kitaev-Preskill (GKP) qubits have been recognized as an important technological element. However, the analog outcome of GKP qubits, which includes beneficial information
Fukui, Kosuke   +2 more
core   +2 more sources

Quantum rate-distortion coding [PDF]

open access: yesPhysical Review A, 2000
I introduce rate-distortion theory for quantum coding, and derive a lower bound, involving the coherent information, on the rate at which qubits must be used to encode a quantum source with a given maximum level of distortion per source emission. The convexity of the "information rate-distortion function" which defines this bound is also derived.
openaire   +2 more sources

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