11 citations · 28 across the 17 of their papers we have counts for
20 papers
Causality, Redshift, and Matching-Scale Cancellation for Reflective Black-Hole Horizons
Masahiro Kaminaga
The Boltzmann flux reflectivity used in quantum-horizon models does not by itself define a causal black-hole boundary response. We study two related questions for stationary Schwar…
Optimal Sample Exponents for Direct Discrete-Gaussian SVP Search on Haar Random Lattices
Masahiro Kaminaga
We determine the optimal sample exponent for direct discrete Gaussian SVP search on Haar random unimodular lattices, counting zero outputs. The output is one sampled vector, option…
Collective Onset of Matter-Induced Scalarization around a Black Hole with Two Thin Shells
Masahiro Kaminaga
We study the linear onset of matter-induced scalarization for a static black hole surrounded by two spatially separated thin matter shells. We assume that the conformal matter coup…
Thermal Concentration and Poisson-Dirichlet Edge Statistics for Random-Lattice Gibbs Ensembles
Masahiro Kaminaga
We study Gibbs measures on high-dimensional Haar-random unimodular lattices, where the energy of a lattice vector is its squared Euclidean norm. The random lattice is viewed as que…
Black-Hole Echo Resonance Spectra and Source Dependence in a Controlled Transfer-Function Model
Masahiro Kaminaga
Echo models phenomenologically encode possible near-horizon structure by replacing the purely ingoing horizon-side condition with an effective reflecting inner boundary near the wo…
Strong-disorder expansion of the root-averaged density of states for the Anderson model on the Bethe lattice
Masahiro Kaminaga
We study the root-averaged density of states for the Anderson model on the Bethe lattice in the strong-disorder regime. Here the density of states means the root-averaged spectral…
Determinant Formulas for Scattering Matrices of Schrödinger Operators with Finitely Many Concentric -Shells
Masahiro Kaminaga
We study stationary scattering for Schrödinger operators in with finitely many concentric --shell interactions of constant real strengths. Starting from the self--…
Schrödinger operators with concentric --shell interactions
Masahiro Kaminaga
We study Schrödinger operators on with finitely many concentric spherical -shell interactions. The operators are defined by the quadratic form method and are descr…
Landau-level splitting by a circular interaction: boundary overlap and the hard-wall crossover
Masahiro Kaminaga
A thin circular barrier lifts the angular momentum degeneracy of Landau states according to their overlap with the barrier. We quantify this effect for the two-dimensional Landau H…
A Transmission Framework for Stark Operators with Interactions on a Compact Lipschitz Interface
Masahiro Kaminaga
We study an elliptic transmission problem associated with a Stark operator and a interaction on a compact Lipschitz interface in . The background differential expr…
Controlled atomic limit and analytic density of states in a strongly attractive random Kronig-Penney model
Masahiro Kaminaga
We study the negative-energy density of states of a one-dimensional random Kronig-Penney model with independent and identically distributed attractive delta interactions. Each isol…
Integrated density of states for the Poisson point interactions on
Masahiro Kaminaga, Takuya Mine, Fumihiko Nakano
We determine the principal term of the asymptotics of the integrated density of states (IDS) for the Schrödinger operator with point interactions on as $λ\to…
Perturbation of discriminant for one-dimensional discrete Schrödinger operator with sparse periodic potential
Masahiro Kaminaga
We consider the one-dimensional discrete Schrödinger operator with complex-valued sparse periodic potential. The spectrum for a complex-valued periodic potential is a complicated c…
A self-adjointness criterion for the Schrödinger operator with infinitely many point interactions and its application to random operators
Masahiro Kaminaga, Takuya Mine, Fumihiko Nakano
We prove the Schrödinger operator with infinitely many point interactions in is self-adjoint if the support of the interactions is decomposed into unifor…
A True Random Number Generator Method Embedded in Wireless Communication Systems
Toshinori Suzuki, Masahiro Kaminaga
To increase the number of wireless devices, e.g., mobile or IoT terminals, cryptosystems are essential for secure communications. In this regard, random number generation is crucia…
Determining the Optimal Random-padding Size for Rabin Cryptosystems
Masahiro Kaminaga, Toshinori Suzuki, Masaharu Fukase
Rabin encryption and a secure ownership transfer protocol based on the difficulty of factorization of a public key use a small public exponent. Such encryption requires random numb…
Quantum diffusion in the Kronig-Penney model
Masahiro Kaminaga, Takuya Mine
In this paper we consider the 1D Schrödinger operator with periodic point interactions. We show an bound for the time evolution operator restricted to…
Crashing Modulus Attack on Modular Squaring for Rabin Cryptosystem
Masahiro Kaminaga, Hideki Yoshikawa, Arimitsu Shikoda +1
The Rabin cryptosystem has been proposed protect the unique ID (UID) in radio-frequency identification tags. The Rabin cryptosystem is a type of lightweight public key system that…
Double Counting in -ary RSA Precomputation Reveals the Secret Exponent
Masahiro Kaminaga, Hideki Yoshikawa, Toshinori Suzuki
A new fault attack, double counting attack (DCA), on the precomputation of -ary modular exponentiation for a classical RSA digital signature (i.e., RSA without the Chinese rem…
A Note on the Analyticity of Density of States
M. Kaminaga, M. Krishna, S. Nakamura
We consider the -dimensional Anderson model, and we prove the density of states is locally analytic if the single site potential distribution is locally analytic and the disorde…