8 papers
Two-peak gravitational wave spectra from supercooled two-field phase transitions
Daniel Araújo, João Gonçalves, Danny Marfatia
We study the gravitational wave (GW) spectrum generated by supercooled first-order phase transitions in two-field conformal models. We construct three representative toy models tha…
Ordered-Angle Coding for Exact Multiuser Unanimity Testing
Luis Adrián Lizama-Pérez
We introduce ordered-angle coding for binary-unanimity testing among transformation-only users in a serial quantum architecture inherited from Loop-Back communication. User $B_…
The Structured Totient Preimage Problem: Reconstruction, Collisions, and Cryptographic Implications
Luis Adrián Lizama-Pérez
We define and study the Structured Totient Preimage (STP) problem as a restricted reconstruction relation with a direct cryptographic motivation. Let be distinct p…
A Bell-State Extension of Loop-Back Quantum Key Distribution
Luis Adrián Lizama-Pérez
Bidirectional quantum key distribution (QKD) protocols face persistent challenges related to classical disclosure, confinement of the signal space to predictable subspaces, and lim…
An Effective Pauli-Channel Model for Passive-User Loop-Back QKD
Luis Adrián Lizama-Pérez
This work develops an effective channel model for distributed passive-user Loop-Back quantum key distribution. In the intended key-establishment setting, the two passive users \(B_…
Rotational Bell-State Loop-Back Key Establishment and Agreement Certification for Passive Users
Luis Adrián Lizama-Pérez
Server-aided Bell-state networks with sequential local encoding are an established approach to mediated key distribution. Against this background, we study a Loop-Back architecture…
Introducing a Novel Quantum-Resistant Secret Key Establishment Method
Luis Adrián Lizama-Pérez
We present a novel approach to secret key establishment that appears to be resistant to currently known quantum cryptanalytic algorithms. This quantum resistance arises because the…
Non-invertible Anonymous Communication for the Quantum Era
Luis Adrián Lizama-Pérez
We introduce a new approach for circuit anonymous communication based on Lizama's non-invertible Key Exchange Protocol (ni-KEP) which has been conceived to work in the quantum era.…