Advanced searches left 3/3

FAULT - Astrophysics Data System

Summarized by Plex Scholar
Last Updated: 24 September 2022

* If you want to update the article please login/register

Concatenation Schemes for Topological Fault-tolerant Quantum Error Correction

With the three-dimensional cluster state, we investigate a number of fault-tolerant quantum error correction schemes based on the concatenation of small error detection or error correction codes.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220909390L/abstract


Long-range data transmission in a fault-tolerant quantum bus architecture

The system creates a maximally entangled state of two qubits using a circuit made up of nearest-neighbor Clifford gates and local measurements only, leading to an efficient computable Pauli correction. Also, all operations within a repeater are local unless the qubits are sequenced in a square lattice. The noise-resilience of our scheme is based on the underlying cluster state's fault tolerance property.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220909774C/abstract


EM-Fault It Yourself: Building a Replicable EMFI Setup for Desktop and Server Hardware

We first explore how to develop an automated EMFI system with high scanning resolution and high repeatability that is large enough to tackle modern desktop and server CPUs. The AMD Secure Processor, a chip that comes as a standard in modern AMD systems on a chip, is a deeply embedded security coprocessor in second. We use our setup to target a deeply embedded security coprocessor in modern AMD systems on a chip. We're running two custom payloads on the AMD-SP that use the SoC to various degrees using a previously announced code execution tool. We then see these fault sites on SoC photographs, allowing us to speculate about the SoC's components under attack. We also show that the signature verification procedure of one of the first manufactured firmware parts is vulnerable to EMFI attacks, undermining the entire SoC's security architecture. This is the first recorded EMFI attack against an AMD desktop CPU, according to the best of our knowledge.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220909835K/abstract


Effect of Sn on generalized stacking fault energy surfaces in zirconium and its hydrides

Hydrogen embrittlement in Zr alloy fuel cladding is a key safety issue for water-based nuclear reactors. hcp 0̆3b1 -Zr and fcc zirconium hydrides In order to demonstrate the emergence of hydrides and planar defects observed in our experiments, we performed atomic-scale ab initio calculations focusing on the solute interactions with generalized stacking faults in hcp 0̆3b1 -Zr and fcc zirconium hydrides. The solution enthalpy of Sn in the - Zr is lower in comparison to other hydride phases, indicating two competing processes of Sn depletion/enrichment at the Zr hydride/matrix interface.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220909147C/abstract


Parallel window decoding enables scalable fault tolerant quantum computation

Quantum Error Correction continually produces a stream of syndrome reports that include details about the computer's behavior. For efficient fault-tolerant quantum computation, useful fault-tolerant quantum computation needs internet decoders that are able to process these syndrome data at the rate it is received. The decoders must execute QEC rounds in sub-1 0̆3bc s time, making a strict limit on the decoders' speed. All modern decoder solutions have a maximum code size above which the processing of syndromes becomes too slow to keep up with the data acquisition, effectively ending the fault-tolerant computation's being scalable. Some classic feedback decisions must be postponed, resulting in a slowed-down of the logical clock speed. In addition, we find that the algorithm has no noticeable decline in logical fidelity relative to the original global decoder. We then discuss how the same process can be used in online hardware decoders.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220908552S/abstract


Fault-Tolerant Preparation of Quantum Polar Codes Encoding One Logical Qubit

This paper discusses a new approach to fault-tolerant quantum computation, which depends on quantum polar codes. We'll investigate quantum polar codes of Calderbank-Steane type, encoding one logical qubit, which we refer to as 835_1 codes. We find that a subfamily of 835_1 codes is equivalent to the well-known family of Shor codes, as shown by the following chart. In addition, we show that 835_1 codes significantly outperform Shor codes, which are both long and short distances. Based on two-qubit Pauli measurements only, we offer a recursive method to create a 835_1 code state.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220906673G/abstract


Optimal Active Fault Detection in Inverter-Based Grids

Ground faults in converter-based grids can be difficult to detect because, unlike in grids with synchronous machines, they seldom result in large currents. We develop optimal perturbation sequences for use with the Multiple Model Kalman Filter in this paper. Simulations show that the right input sequence improves fault detection's credibility while also decreasing detection time.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220906760P/abstract


Geochemical characteristics and origin of crude oil from Carboniferous volcanic rocks in the Hongche Fault Zone of the Junggar Basin of China

This research explored crude oil and source of crude oil on a time when biodegradation of crude oil and source of crude oil was investigated using experimental techniques that investigate crude oil's physical, bulk properties, and biomarker compounds of crude oil. crude oil's discovery potential in this region was evaluated, and an accumulation model of crude oil was developed. The second period of Cretaceous, during which the P1f source rock was still in the natural gas production stage, and the P2w source rock was at a mature stage. The crude oil produced by the earlier P2w source rock migrated to the Carboniferous reservoirs and mixed with the crude oil produced by the earlier P1f source rock, resulting in crude oil grades I2, III2, and IV2.

Source link: https://ui.adsabs.harvard.edu/abs/2022FrEaS..10.3245H/abstract


Geological and geomorphological evidence of holocene activity along the maisu fault in the northern Sichuan–Yunnan block, Tibetan Plateau

The Sichuan block is located in the eastern of Tibetan Plateau's eastern province and shows strong tectonic and earthquake activity. Within this block, the Maisu fault is an Eu2013W-trending defect. We found an earthquake surface rupture zone along the Maisu fault that has existed since the Maisu fault, which we then estimated at its Holocene activity. The Maisu fault extends eastward and may cross the Garzu fault line, which may also intersect the Garzu fault. U2013Yushu is a Japanese writer who writes about the Garzu fault. According to reports, the Maisu fault as a secondary fault partly compensates the Garzu2013Yushu fault's partitioned horizontal slip deformation.

Source link: https://ui.adsabs.harvard.edu/abs/2022FrEaS..10.6558Z/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions