Results 61 to 70 of about 62,273 (187)

Open and Closed Loop Approaches for Energy Efficient Quantum Optimal Control

Advanced Quantum Technologies, EarlyView.
Concepts from quantum thermodynamics and optimal control are blended to derive a theoretical framework to quantify and minimize the energetic cost of a pulse for unitary synthesis. Two complementary techniques (based on GRAPE and Reinforce‐DRL) are implemented as open‐source software that co‐optimizes the fidelity and energetic cost within quantum ...
Sebastiaan Fauquenot, Aritra Sarkar, Sebastian Feld   +2 more
wiley   +1 more source

An algebra structure for reproducing kernel Hilbert spaces [PDF]

Banach Journal of Mathematical Analysis
Reproducing kernel Hilbert spaces (RKHSs) are Hilbert spaces of functions where pointwise evaluation is continuous. There are known examples of RKHSs that are Banach algebras under pointwise multiplication.
Michael R. Montgomery, Dimitrios Giannakis   +1 more
semanticscholar   +1 more source

Multi Matrix Vector Coherent States

, 2004
A class of vector coherent states is derived with multiple of matrices as vectors in a Hilbert space, where the Hilbert space is taken to be the tensor product of several other Hilbert spaces.
A. Krzyżak, Ali, Ali, Antoine, Ashraf, Daoud, Erdelyi, Fakhri, G. Honnouvo, Gao, Gazeau, Janowicz, K. Thirulogasanthar, Klauder, Klauder, Klauder, Novaes, Perelomov, Thirulogasanthar, Thirulogasanthar, Tian   +20 more
core   +2 more sources

QMM‐Enhanced Error Correction: Demonstrating Reversible Imprinting and Retrieval for Robust Quantum Computation

Advanced Quantum Technologies, EarlyView.
Hardware experiments show a single‐layer Quantum Memory Matrix booster cuts logical error sixfold and, when prepended to a [3,1,3]$[3,1,3]$ repetition code, attains 94 % logical fidelity without extra CX gates. QMM dressing also lowers variational‐training loss by 35 %, offering a measurement‐free, resource‐light route to error suppression on NISQ ...
Florian Neukart, Eike Marx, Valerii Vinokur, Jeff Titus   +3 more
wiley   +1 more source

The quantum Hilbert space of a chiral two-form in d = 5 + 1 dimensions

, 2001
We consider the quantum theory of a two-form gauge field on a space-time which is a direct product of time and a spatial manifold, taken to be a compact five-manifold with no torsion in its cohomology.
E. Witten, E. Witten, M. Henningson, M. Henningson, M. Henningson, Måns Henningson, O. Aharony   +6 more
core   +1 more source

Fault diagnosis method of a cascaded H‐bridge inverter based on a multisource adaptive fusion CNN‐transformer

IET Power Electronics, EarlyView.
The multisource adaptive fusion CNN‐transformer method proposed in this study can provide theoretical and technical support for fault diagnosis of high‐voltage MCHBI. It has a promising potential for engineering applications. Abstract In high‐voltage applications, the number of cascaded H‐bridge inverter units is large, the failure probability ...
Weiman Yang, Weinian Wang, Xinggui Wang, Jianfeng Gu, Zhuoling Wang   +4 more
wiley   +1 more source

A critical review of high‐frequency activity for functional mapping in SEEG

Epilepsia, EarlyView.
Abstract Mapping functional brain networks is a critical component of stereo–electroencephalography (SEEG) evaluations. Although direct cortical stimulation (DCS) is the clinical gold standard, it has important limitations—particularly in mapping distributed, complex functions such as language and memory, where deficits may still occur despite ...
Parveen Sagar, Matt Hudson, Genevieve Rayner, Terence J. O'Brien, Joshua Laing, Andrew Neal   +5 more
wiley   +1 more source

Models in Decision‐Making Under Risk and Uncertainty

Journal of Economic Surveys, EarlyView.
ABSTRACT This paper systematically compares dominant frameworks for modeling decision‐making under risk and uncertainty, evaluating their theoretical trade‐offs and practical relevance for economic research. We establish key criteria for model selection—including predictive accuracy, descriptive realism, computational tractability, and ecological ...
Martin Höppner
wiley   +1 more source

Functional Sieve Bootstrap for the Partial Sum Process With an Application to Change‐Point Detection

Journal of Time Series Analysis, EarlyView.
ABSTRACT This article applies the functional sieve bootstrap (FSB) to estimate the distribution of the partial sum process for time series stemming from a weakly stationary functional process. Consistency of the FSB procedure under weak assumptions on the underlying functional process is established.
Efstathios Paparoditis, Lea Wegner, Martin Wendler   +2 more
wiley   +1 more source

Symmetries of finite Heisenberg groups for multipartite systems

, 2012
A composite quantum system comprising a finite number k of subsystems which are described with position and momentum variables in Z_{n_{i}}, i=1,...,k, is considered.
Korbelar, M., Tolar, J.
core   +1 more source