Papers
Experimental predictions of the $E_8 \times ωE_8$ octonionic unification program : A falsification-oriented catalogue for quantum foundations, particle physics, gravitation, and cosmology
Tejinder P. Singh·Apr 7, 2026
The $E_8 \times ωE_8$ octonionic program aims at a deliberately ambitious synthesis: quantum theory without external classical time, objective collapse, emergent classical space-time, exceptional Jordan-algebra flavor structure, and an exceptional-gr...
Deviations from thermal light statistics in ensembles of independent two-level emitters
Manuel Bojer, André Cidrim, Romain Bachelard +1 more·Apr 7, 2026
We investigate the light statistics of an ensemble of independent motionless two-level atoms in a product state. We identify the conditions under which the cold atomic ensemble emits thermal light statistics characterized by the Gaussian Moment Theor...
Probing the Factorized Island Branch with the Capacity of Entanglement in JT Gravity
Raúl Arias, Agustín Tamis·Apr 7, 2026
Black hole islands are usually diagnosed through the von Neumann entropy, but the full replica saddle contains more information than survives in the limit $n \to 1$. In this paper we show that the capacity of entanglement can detect that extra struct...
Quantum-Boosted Nonlinear Tunneling Driven by a Bright Squeezed Vacuum
Zhejun Jiang, Shengzhe Pan, Jianqi Chen +12 more·Apr 7, 2026
Nonlinear processes, mediated by multiphoton interactions rather than single-photon response, drive numerous fundamental phenomena and momentous applications in modern physics. Among these processes, tunneling ionization plays a pivotal role as it dr...
A Nested Amplitude Amplification Protocol for the Binary Knapsack Problem
Laurin Demmler, Maximilian Hess·Apr 7, 2026
Amplitude Amplification offers a provable speedup for search problems, which is leveraged in combinatorial optimization by Grover Adaptive Search (GAS). The protocol demands deep circuits that are challenging with regards to NISQ capabilities. We pro...
Spectrum-Generating Algebra in Higher Dimensional Gauge Theories
Thea Budde, Jiangjing Dong, Marina Krstić Marinković +1 more·Apr 7, 2026
Non-equilibrium properties of strongly interacting gauge theories are often intractable with classical simulation methods. Due to recent developments of quantum simulations, studies of their properties in two spatial dimensions are becoming accessibl...
Kinetic Uncertainty Relation in Collective Dissipative Quantum Many-Body Systems
Hayato Yunoki, Yoshihiko Hasegawa·Apr 7, 2026
Attaining the ultimate precision remains a central objective in the engineering of nanoscale systems and the investigation of nonequilibrium processes. While thermodynamic and kinetic uncertainty relations establish fundamental precision bounds, prio...
Mirror Dual Symmetry in Physics
Lucas Lamata·Apr 7, 2026
The quantum Rabi model has been a useful and pedagogical quantum model in the past decades, sufficiently simple to be solved analytically and intuitively understood, while sufficiently complex as to provide highly non-trivial eigenstates and a practi...
A plug-and-play superconducting quantum controller at millikelvin temperatures enables exceeding 99.9% average gate fidelity
Kuang Liu, Zhiyuan Wang, Xiaoliang He +12 more·Apr 7, 2026
The development of large-scale superconducting quantum computing requires efficient in-situ control methods that allow high-fidelity operations at millikelvin temperatures. Superconducting circuits based on Josephson junctions offer a promising solut...
The final version of a recent approach towards quantum foundation
Inge S. Helland·Apr 7, 2026
In several articles, this author has advocated an alternative approach towards quantum foundation based upon a set of postulates, and based upon the notions of theoretical variables and of accessible theoretical variables. It is shown in this article...
A Global Model Structure for $\mathbb{K}$-Linear $\infty$-Local Systems
Hisham Sati, Urs Schreiber·Apr 7, 2026
Parameterized stable homotopy theory organizes local systems of spectra over homotopy types, governed by a "yoga" of six functors. To provide semantics for the recently developed Linear Homotopy Type Theory (LHoTT), good model categories of these spe...
Coherence and Imaginarity as Resources in Quantum Circuit Complexity
Linlin Ye, Zhaoqi Wu, Nanrun Zhou·Apr 7, 2026
Quantum circuit complexity quantifies the minimal number of gates needed to realize a unitary transformation and plays a central role in quantum computation. In this work, we investigate the complexity of quantum circuits through coherence and imagin...
Quantum Learning of Classical Correlations with continuous-domain Pauli Correlation Encoding
Vicente P. Soloviev, Bibhas Adhikari·Apr 7, 2026
We propose a quantum machine learning framework for estimating classical covariance matrices using parameterized quantum circuits within the Pauli-Correlation-Encoding (PCE) paradigm. We introduce two quantum covariance estimators: the C-Estimator, w...
Symmetry-resolved Krylov Complexity and the Uncoloured Tensor Model
Shaliya Kotta, P N Bala Subramanian·Apr 7, 2026
The symmetry-resolved Krylov complexity is a useful tool in studying chaotic properties of systems that are endowed with symmetries. We investigate the conditions under which an invariant operator would have the symmetry-resolved Krylov complexity in...
Estimation of trace distance between two arbitrary quantum states
Sanchita Ghosh, Anumita Mukhopadhyay, Anindita Bera +2 more·Apr 7, 2026
When it comes to discriminating between two quantum states, trace distance is one of the well-known metrics used in quantum computation and quantum information theory. While there are several quantum algorithms for calculating the trace distance betw...
Loss-aware state space geometry for quantum variational algorithms
Ankit Gill, Kunal Pal·Apr 7, 2026
The natural gradient descent optimisation technique is an efficient optimising protocol for broad classes of classical and quantum systems that takes the underlying geometry of the parameter manifold into account by means of using either the Fisher i...
A solid-state quantum memory based on a continuous optoacoustic system
Changlong Zhu, Claudiu Genes, Birgit Stiller·Apr 7, 2026
Quantum memories for optical states are essential resources for quantum communication and information processing. We propose a quantum memory protocol based on coherent photon-phonon transduction in a Brillouin-active optical waveguide supporting tra...
PQC-Enhanced QKD Networks: A Layered Approach
Paul Spooren, Andreas Neuhold, Sebastian Ramacher +1 more·Apr 7, 2026
We present a layered and modular network architecture that combines Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) to provide scalable end-to-end security across long distance multi-hop, trusted-node quantum networks. To ensure in...
Resource Implications of Different Encodings for Quantum Computational Fluid Dynamics
Hans A. Kösel, Roland Ewert, Jan W. Delfs·Apr 7, 2026
For quantum algorithms for problems in which the task is to compute an entire field of values, like e.g. computational fluid dynamics (CFD), it is often proposed amplitude encoding w.r.t. multiple qubits; however, the efforts implied by it for initia...
Quantum state determinability from local marginals is universally robust
Wenjun Yu, Fei Shi, Giulio Chiribella +1 more·Apr 7, 2026
A fundamental problem in quantum physics is to establish whether a multiparticle quantum state can be uniquely determined from its local marginals. In theory, this problem has been addressed in the exact case where the marginals are perfectly known. ...