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  1. Article

    Open Access

    Double-copy towards supergravity inflation with α-attractor models

    Key to the simplicity of supergravity α-attractor models of inflation are Volkov-Akulov fermions, often in the form of nilpotent superfields. Here we explore the possibility of using the double-copy to construct ...

    John Joseph M. Carrasco, Matthew Lewandowski in Journal of High Energy Physics (2023)

  2. Article

    Open Access

    Gravitational causality and the self-stress of photons

    We study causality in gravitational systems beyond the classical limit. Using on-shell methods, we consider the 1-loop corrections from charged particles to the photon energy-momentum tensor — the self-stress ...

    Brando Bellazzini, Giulia Isabella, Matthew Lewandowski in Journal of High Energy Physics (2022)

  3. No Access

    Chapter

    State Encoding Based Watermarking of Sequential Circuits Using Hybridized Darwinian Genetic Algorithm

    The pitfall of many encoding schemes is that they were created only in the efforts of impacting a single performance metric during the synthesis process. In this work, we present a system for introducing secur...

    Matthew Lewandowski, Srinivas Katkoori in Behavioral Synthesis for Hardware Security (2022)

  4. Chapter and Conference Paper

    Lightweight Countermeasure to Differential-Plaintext Attacks on Permutation Ciphers

    Many lightweight permutation based block ciphers have emerged for the use of encryption and security in the Internet of Things (IoT). However, recent work has shown a critical vulnerability in these ciphers du...

    Matthew Lewandowski, Srinivas Katkoori in Internet of Things. A Confluence of Many D… (2020)

  5. Article

    Open Access

    Leading slow roll corrections to the volume of the universe and the entropy bound

    We make an extension to recent calculations of the probability density ρ(V ) for the volume of the universe after inflation. Previous results have been accurate to leading order in the slow roll parameters ...

    Matthew Lewandowski, Ashley Perko in Journal of High Energy Physics (2014)

  6. Article

    Open Access

    Anomalous dimensions and non-gaussianity

    We analyze the signatures of inflationary models that are coupled to interacting field theories, a basic class of multifield models also motivated by their role in providing dynamically small scales. Near the ...

    Daniel Green, Matthew Lewandowski, Leonardo Senatore in Journal of High Energy Physics (2013)