Results 61 to 70 of about 78,993 (206)

Environmental effects on star formation in dwarf galaxies and star clusters

, 2014
We develop a simple analytical criterion to investigate the role of the environment on the onset of star formation. We will consider the main external agents that influence the star formation (i.e.
Chiosi, C., Cropper, M., Fujita, Y., Grebel, E. K., Pasetto, S.   +4 more
core   +1 more source

Statistical Complexity of Quantum Learning

Advanced Quantum Technologies, EarlyView.
The statistical performance of quantum learning is investigated as a function of the number of training data N$N$, and of the number of copies available for each quantum state in the training and testing data sets, respectively S$S$ and V$V$. Indeed, the biggest difference in quantum learning comes from the destructive nature of quantum measurements ...
Leonardo Banchi, Jason Luke Pereira, Sharu Theresa Jose, Osvaldo Simeone   +3 more
wiley   +1 more source

Constraining smoothness parameter and the DD relation of Dyer-Roeder equation with supernovae

, 2013
Our real universe is locally inhomogeneous. Dyer and Roeder introduced the smoothness parameter $\alpha$ to describe the influence of local inhomogeneity on angular diameter distance, and they obtained the angular diameter distance-redshift approximate ...
Yang, Xi, Yu, Hao-Ran, Zhang, Tong-Jie
core   +1 more source

Quantum‐Noise‐Driven Generative Diffusion Models

Advanced Quantum Technologies, EarlyView.
Diffusion Models (DMs) are today a very popular class of generative models for Machine Learning (ML), using a noisy dynamics to learn an unknown density probability of a finite set of samples in order to generate new synthetic data. This study proposes a method to generalize them into the quantum domain by introducing and investigating what are termed ...
Marco Parigi, Stefano Martina, Filippo Caruso   +2 more
wiley   +1 more source

Efficient Simulation of Open Quantum Systems on NISQ Trapped‐Ion Hardware

Advanced Quantum Technologies, EarlyView.
Open quantum systems exhibit rich dynamics that can be simulated efficiently on quantum computers, allowing us to learn more about their behavior. This work applies a new method to simulate certain open quantum systems on noisy trapped‐ion quantum hardware.
Colin Burdine, Nora Bauer, George Siopsis, Enrique P. Blair   +3 more
wiley   +1 more source

Effective sound speed in relativistic accretion discs around rotating black holes

, 2019
For axially symmetric accretion maintained in the hydrostatic equilibrium along the vertical direction in the Kerr metric, the radial Mach number does not become unity at the critical point.
Das, Tapas Kumar, Maity, Susovan, Shaikh, Md Arif   +2 more
core  

Performance of a Superconducting Quantum Battery

Advanced Quantum Technologies, EarlyView.
The authors introduce a scheme for superconducting quantum battery (SQB) consisting of two coupled superconducting qubits that interact during the unitary charging process while remaining in equilibrium with a thermal reservoir. This work highlights the complexities of tuning system parameters, which increase the potential for work extraction from the ...
Samira Elghaayda, Asad Ali, Saif Al‐Kuwari, Artur Czerwinski, Mostafa Mansour, Saeed Haddadi   +5 more
wiley   +1 more source

Cuprate Twistronics for Quantum Hardware

Advanced Quantum Technologies, EarlyView.
This review bridges decades of foundational research with emerging fabrication techniques such as molecular beam epitaxy and cryogenic stacking. By enabling control over electronic correlations and symmetry in twisted cuprate heterostructures, it highlights how cuprate twistronics could open new paths to overcome decoherence and scalability challenges ...
Tommaso Confalone, Flavia Lo Sardo, Yejin Lee, Sanaz Shokri, Giuseppe Serpico, Alessandro Coppo, Luca Chirolli, Valerii M. Vinokur, Valentina Brosco, Uri Vool, Domenico Montemurro, Francesco Tafuri, Kornelius Nielsch, Golam Haider, Nicola Poccia   +14 more
wiley   +1 more source

Embedded Interactions and Selective Disclosure: Network Effects on Conversations aboard Skylab

Symbolic Interaction, EarlyView.
How do absent others influence our interactions? We argue in this paper that interactions are embedded within networks formed by chains of specific relationships between known third parties. The anticipation of future interactions with external others conditions our interpretation of the current situation and affects our behavior in the interaction. We
Michael Schultz, Leslie DeChurch, Noshir Contractor   +2 more
wiley   +1 more source

Heading west: ecology of swift foxes in a novel landscape beyond their range

Wildlife Biology, EarlyView.
The swift fox Vulpes velox is generally associated with the short‐grass prairie ecosystem of the North American Great Plains; a system that has declined by approximately 50% over the last century. Yet, swift fox populations seem to demonstrate regional variation in trends, with some populations declining while others appear stable to increasing.
Austin B. Smith, Ashley G. Wolf, Kelsie R. Buxbaum, Leah H. Yandow, Christopher C. Keefe, Heather L. O'Brien, Neal C. Swayze, Joseph D. Holbrook   +7 more
wiley   +1 more source