20 papers · ranked by Valyu relevance
Sina Kazemian, Ghazal Farhani, Younes Javanmard
The classical Boltzmann Bridge describes entropy histories conditioned on both an initial low-entropy macrostate and a later macrostate. Unlike the usual past-only formulation of the thermodynamic arrow, this two-time conditioning can produce entropy profiles that rise above the final entropy and then decrease toward…
Chen Huang, Jingbo Wang, Zhemin Zhang, Ming Zhong + 4 more
Neutral atom quantum computing offers strong scalability and flexible qubit connectivity, but most existing compilation flows rely on reconfigurable atom arrays that physically shuttle qubit atoms during execution. Although this approach improves connectivity, it also introduces handoff errors, motional heating, and…
Yongxin Song, Dominic Hagmann, Kieran Dalton, Felix Henrich + 4 more
Microwave crosstalk poses a major challenge to scaling superconducting quantum devices as it introduces excess control errors. Although its magnitude and impact have been explored in various experimental settings, quantitative physical models capable of explaining measured crosstalk for a given device geometry remain…
Authors not listed
Organic diradicals bridged by inverted singlet–triplet (InveST) units have recently emerged as promising molecular platforms for spin–optical functionality, enabling op- tical control of spin–spin interactions within a fully organic framework. Here, we study a series of symmetric and asymmetric InveST-bridged…
Ella O. Lachman, Dave P. Pappas, Jayss Marshall, Josh Y. Mutus
Accurate knowledge of the on-chip temperature is essential for understanding and optimizing the performance of superconducting qubits, yet direct thermometry at millikelvin temperatures remains challenging. While qubits themselves are sensitive to the temperature of their environment, other factors may affect the…
Alberto Privitera, Alessandro Chiesa, Fabio Santanni, Davide Ranieri + 9 more
Coupling in a Vanadyl Porphyrin Trimer Authors: Alberto Privitera, Alessandro Chiesa, Fabio Santanni, Davide Ranieri, Prem P. Sahu, Matthew D. Krzyaniak, Andrea Caneschi, Ryan M. Young, Mathias O. Senge, Federico Totti, Michael R. Wasielewski, Stefano Carretta, Roberta Sessoli Molecules provide a modular and chemically…
Jonas C. J. Zatsch, Tim Engling, Jeldrik Huster, Louis L. Hohmann + 2 more
The realisation of quantum networks requires local quantum information processing at the network nodes and highly efficient transmission of quantum information across the network. Integrated photonics, based on silicon-on-insulator, is a promising platform for quantum network nodes, as it supports low-loss propagation…
Wenhao Shan, Fujin Lv, Wei Liu, Bin Li + 7 more
Environmental heavy metal pollution poses a severe threat to ecological security and human health, necessitating the development of highly sensitive, specific, and rapid detection technologies. Traditional fluorescent biosensors are often constrained by high background interference and limited sensitivity, while…
Nikolay Petkov, Giorgos Fagas, Young-Kyu Han
In this review, we focus on group IV one-dimensional devices for quantum technology. We outline the foundational principles of quantum computing before delving into materials, architectures and fabrication routes, separately, by comparing the bottom-up and top-down approaches. We demonstrate that due to easily tunable…
Z. M. McIntyre, Abhikbrata Sarkar, Daniel Loss
Spin qubits have emerged as a leading platform for quantum information processing due to their long coherence times, small footprint, and compatibility with the existing semiconductor industry. We first provide an introduction to the different qubit implementations currently being investigated, including single…
Jacob F. Chittock-Wood, Ross C. C. Leon, Michael A. Fogarty, Tara Murphy + 11 more
Silicon spin qubits based on metal-oxide-semiconductor (MOS) technology are compatible with semiconductor manufacturing and offer a route to scalable quantum processing. However, spin readout typically relies on proximal charge sensors, which add architectural complexity and limit qubit connectivity. In situ dispersive…
Thomas R. Scruby, Kae Nemoto, Zhenyu Cai
We show how looped pipeline architectures-which use short-range shuttling of physical qubits to achieve bounded non-local connectivity-can efficiently implement the fault-tolerant non-Clifford gate between 2D surface codes described in (Sci. Adv. 6, eaay4929 (2020)). The shuttling schedule required is only marginally…
Bryan K Chantigian, Sang-Hyun Oh
Despite the exponential growth of microelectronics driven by Moore’s law over half a century, biosensing has remained largely dominated by optical methods such as fluorescence assays and surface plasmon resonance (SPR). Electronic biosensors, particularly field-effect transistor (FET)-based platforms, have historically…
Authors not listed
Commercially relevant quantum computers will require large numbers of high-performing qubits that can be manufactured, integrated and controlled at scale. Silicon exchange-only qubits1-10 are a strong candidate modality owing to their control-signal simplicity and compatibility with advanced semiconductor…
Namasi G Sankar, Georgios Miliotis, Simon Caton
Genome assembly is important in infectious disease surveillance, antimicrobial resistance monitoring, and cancer genomics. The task of reconstructing full genomic sequences from fragmented reads, can be framed as a large scale combinatorial optimisation problem. Recent advances in quantum computing have introduced new…
Muhammad AbuGhanem
The Berkeley gate is a high-performance, two-qubit entangling operation with particular potential for quantum error correction and fault-tolerant protocols. However, harnessing this potential on current noisy intermediate-scale quantum (NISQ) processors, requires efficient compilation and robust performance under…
Authors not listed
The electron spin is a natural qubit platform and, when embedded in a molecule, its properties can be tailored via synthetic chemistry. However, the quantum properties can be utilised only for a limited time and lengthening this coherence time is still challenging. Nuclear spin dynamics is one of the principal sources…
Authors not listed
The valence intermediate effective Hamiltonian (VIEH) approach has become a powerful tool for dissecting the fundamental components of spin-state energetics in magnetically coupled system. Combined with differently sized complete active space approaches (CASSCF), this method enables a decomposition of the magnetic…
Friederike Butt, Ivan Pogorelov, Robert Freund, Alex Steiner + 3 more
The ability to perform quantum error correction (QEC) and robust gate operations on encoded qubits opens the door to demonstrations of quantum algorithms. Contemporary QEC schemes typically require mid-circuit measurements with feed-forward control, which are challenging for qubit control, often slow, and susceptible…
Authors not listed
This paper develops a comprehensive theoretical framework for designing quantum memory systems with enhanced resilience to thermal decoherence through engineered lattice geometries and protective structures. We formulate a unified mathematical description connecting material properties, geometric configurations, and…