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Probing Hilbert space fragmentation and the block Inverse Participation Ratio

Philipp Frey, David Mikhail, Stephan Rachel, Lucas Hackl

University of Melbourne

Preprint

What Does ‘(Non)-Absoluteness of Observed Events’ Mean?

Emily Adlam

UWO London

Preprint

General gravitational charges on null hypersurfaces

Gloria Odak, Antoine Rignon-Bret, Simone Speziale

CPT Marseille

Preprint

Null Raychaudhuri: Canonical Structure and the Dressing Time

Luca Ciambelli, Laurent Freidel, Robert G. Leigh

Perimeter Institute

Preprint

A trace inequality for Euclidean gravitational path integrals (and a new positive action conjecture)

Eugenia Colafranceschi, Donald Marolf, Zhencheng Wang

UCSB

Preprint

Global Synthesis of CNOT Circuits with Holes

Ewan Murphy, Aleks Kissinger

Oxford Computer Science

Preprint
Journal

Matter relative to quantum hypersurfaces

Philipp A. Hoehn, Andrea Russo, Alexander R. H. Smith

OIST

Preprint

Predictive Modelling of Quantum Process with Neural Networks

Yan Zhu, Ya-Dong Wu, Qiushi Liu, Yuexuan Wang, Giulio Chiribella

QICI Hong Kong

Preprint

Sequence Processing with Quantum Tensor Networks

Carys Harvey, Richie Yeung, Konstantinos Meichanetzidis

Quantinuum

Preprint

A clarification on prevailing misconceptions in unimodular gravity

Gabriel R. Bengochea, Gabriel Leon, Alejandro Perez, Daniel Sudarsky

CPT Marseille

Preprint

Commuting operations factorise

Renato Renner, Ramona Wolf

ETH Zürich

Preprint

Quantum mechanics with real numbers: entanglement, superselection rules and gauges

Vlatko Vedral

Oxford Physics Department

Preprint

Experimental property-reconstruction in a photonic quantum extreme learning machine

Alessia Suprano, Danilo Zia, Luca Innocenti, Salvatore Lorenzo, Valeria Cimini, Taira Giordani, Ivan Palmisano, Emanuele Polino, Nicolò Spagnolo, Fabio Sciarrino, G. Massimo Palma, Alessandro Ferraro, Mauro Paternostro

QILab Rome

Preprint

Generation and characterization of polarization-entangled states using quantum dot single-photon sources

Mauro Valeri, Paolo Barigelli, Beatrice Polacchi, Giovanni Rodari, Gianluca De Santis, Taira Giordani, Gonzalo Carvacho, Nicolò Spagnolo, Fabio Sciarrino

QILab Rome

Preprint

Painlevé-Gullstrand coordinates discontinuity in the quantum Oppenheimer-Snyder model

Francesco Fazzini, Carlo Rovelli, Farshid Soltani

CPT Marseille, UWO London, Perimeter Institute

Preprint
Journal

Light-cone thermodynamics: purification of the Minkowski vacuum

Alejandro Perez, Salvatore Ribisi

CPT Marseille

Preprint

The debate over QKD: A rebuttal to the NSA’s objections

Renato Renner, Ramona Wolf

ETH Zürich

Preprint

Obstructions to Compositionality

Caterina Puca, Amar Hadzihasanovic, Fabrizio Genovese, Bob Coecke

Quantinuum

Preprint

The Generative Programs Framework

Mordecai Waegell, Kelvin J. McQueen, Emily C. Adlam

UWO London

Preprint

Discreteness Unravels the Black Hole Information Puzzle: Insights from a Quantum Gravity Toy Model

Alejandro Perez, Sami Viollet

CPT Marseille

Preprint

Local Inaccessibility of Random Classical Information : Conditional Nonlocality demands Entanglement

Subhendu B. Ghosh, Snehasish Roy Chowdhury, Tathagata Gupta, Anandamay Das Bhowmik, Sutapa Saha, Some Sankar Bhattacharya, Tamal Guha

QICI Hong Kong

Preprint

A no-go theorem for absolute observed events without inequalities or modal logic

Nick Ormrod, Jonathan Barrett

Oxford Computer Science

Preprint

Which theories have a measurement problem?

Nick Ormrod, V. Vilasini, Jonathan Barrett

Oxford Computer Science

Preprint

Quantum-Enhanced Learning of Continuous-Variable Quantum States

Ya-Dong Wu, Giulio Chiribella, Nana Liu

QICI Hong Kong

Preprint

Causal structure in the presence of sectorial constraints, with application to the quantum switch

Nick Ormrod, Augustin Vanrietvelde, Jonathan Barrett

Paris-Saclay, Oxford Computer Science

Preprint
Journal

Quantum Causal Inference with Extremely Light Touch

Xiangjing Liu, Yixian Qiu, Oscar Dahlsten, Vlatko Vedral

Oxford Physics Department

Preprint

Graphical CSS Code Transformation Using ZX Calculus

Jiaxin Huang, Sarah Meng Li, Lia Yeh, Aleks Kissinger, Michele Mosca, Michael Vasmer

Oxford Computer Science

Preprint
Journal

Nonclassicality in correlations without causal order

Ravi Kunjwal, Ognyan Oreshkov

Université Libre Bruxelles

Preprint

Matrix Mechanics Mis-Prized: Max Born’s Belated Nobelization

John L. Heilbron, Carlo Rovelli

CPT Marseille, UWO London, Perimeter Institute

Preprint

Relational interpretation of quantum mechanics and Alexander Bogdanov’s worldview

Carlo Rovelli

CPT Marseille, UWO London, Perimeter Institute

Preprint
Journal

Fresh perspectives on the foundations of quantum physics

Eric G. Cavalcanti, Rafael Chaves, Flaminia Giacomini, Yeong-Cherng Liang

ETH Zürich

Preprint
Journal

Temporal witnesses of non-classicality in a macroscopic biological system

Giuseppe Di Pietra, Vlatko Vedral, Chiara Marletto

Oxford Physics Department

Preprint
Journal

A toy model provably featuring an arrow of time without past hypothesis

Pablo Arrighi, Gilles Dowek, Amélia Durbec

Paris-Saclay

Preprint

Fresh perspectives on the foundations of quantum physics

Eric G. Cavalcanti, Rafael Chaves, Flaminia Giacomini & Yeong-Cherng Liang

ETH Zürich

Preprint
Journal

Disappearing Without a Trace: The Arrows of Time in Kent’s Solution to the Lorentzian Quantum Reality Problem

Emily Adlam

UWO London

Preprint
Journal

Linear Ultrastrong Optomechanical Interaction

Kahan Dare, Jannek J. Hansen, Iurie Coroli, Aisling Johnson, Markus Aspelmeyer, Uroš Delić

IQOQI Vienna

Preprint

Observers in superposition and the no-signaling principle

Veronika Baumann, Caslav Brukner

IQOQI Vienna

Preprint

Paradox with Phase-Coupled Interferometers

Saba Etezad-Razavi, Lucien Hardy

Perimeter Institute

Preprint

Relational superposition measurements with a material quantum ruler

Hui Wang, Flaminia Giacomini, Franco Nori, Miles P. Blencowe

ETH Zürich

Preprint

Average Pure-State Entanglement Entropy in Spin 1/2 Systems with SU(2) Symmetry

Rohit Patil, Lucas Hackl, Marcos Rigol

University of Melbourne

Preprint

Royal Holloway, Institute for Quantum Optics and Quantum Information – Vienna & The Centre de Physique Théorique – UMR 7332 – CNRS and Aix-Marseille Université and Université de Toulon & The University of Western Ontario and Rotman Institute for Philosophy & Perimeter Institute for Theoretical Physics &Institute for Quantum Optics and Quantum Information, Vienna

Andrea Di Biagio, Richard Howl, Časlav Brukner, Carlo Rovelli, Marios Christodoulou

, UWO London,

Preprint

Incompleteness Theorems for Observables in General Relativity

Aristotelis Panagiotopoulos, George Sparling, Marios Christodoulou

Preprint

On the consistency of relative facts

Eric G. Cavalcanti, Andrea Di Biagio, Carlo Rovelli

CPT Marseille, UWO London, Perimeter Institute

Preprint

Probing spectral features of quantum many-body systems with quantum simulators

Jinzhao Sun, Lucia Vilchez-Estevez, Vlatko Vedral, Andrew T. Boothroyd, M. S. Kim

Oxford Physics Department

Preprint

Dark Energy or Modified Gravity?

Chris Smeenk, James Owen Weatherall

UWO London

Preprint

The principle of a finite density of information

Pablo Arrighi, Gilles Dowek

Paris-Saclay

Preprint

A resource theory of activity for quantum thermodynamics in the absence of heat baths

Swati, Uttam Singh, Giulio Chiribella

QICI Hong Kong

Preprint

Picturing counting reductions with the ZH-calculus

Tuomas Laakkonen, Konstantinos Meichanetzidis, John van de Wetering

Quantinuum

Preprint
Journal

Probes, purviews, purgatories, parable, paradox?

Josh Kirklin

OIST

Preprint

Gravitationally-induced entanglement in cold atoms

Richard Howl, Nathan Cooper, Lucia Hackermüller

Royal Holloway

Preprint

Experimental super-Heisenberg quantum metrology with indefinite gate order

Peng Yin, Xiaobin Zhao, Yuxiang Yang, Yu Guo, Wen-Hao Zhang, Gong-Chu Li, Yong-Jian Han, Bi-Heng Liu, Jin-Shi Xu, Giulio Chiribella, Geng Chen, Chuan-Feng Li, Guang-Can Guo

QICI Hong Kong

Preprint
Journal

On the Inevitable Lightness of Vacuum

Laurent Freidel, Jerzy Kowalski-Glikman, Robert G. Leigh, Djordje Minic

Perimeter Institute

Preprint

The Temporal Asymmetry of Influence is Not Statistical

Emily Adlam

UWO London

Preprint
Journal

On the analogies between gravitational and electromagnetic radiative energy

Henrique Gomes, Carlo Rovelli

CPT Marseille, UWO London, Perimeter Institute

Preprint

The Topology of Causality

Stefano Gogioso, Nicola Pinzani

Université Libre Bruxelles

Preprint

The Geometry of Causality

Stefano Gogioso, Nicola Pinzani

Université Libre Bruxelles

Preprint

Classification of causally complete spaces on 3 events with binary inputs

Stefano Gogioso, Nicola Pinzani

Université Libre Bruxelles

Preprint

Are Entropy Bounds Epistemic?

Emily Adlam

UWO London

Preprint

Complete Graphical Language for Hermiticity-Preserving Superoperators

Titouan Carette, Timothée Hoffreumon, Émile Larroque, Renaud Vilmart

Université Libre Bruxelles

Preprint

Graph subshifts

Pablo Arrighi, Amélia Durbec, Pierre Guillon

Paris-Saclay

Preprint

The Everything-is-a-Quantum-Wave Interpretation of Quantum Physics

Vlatko Vedral

Oxford Physics Department

Preprint

What Is In a Survey? Simulation-Induced Selection Effects in Astronomy

Sarah C. Gallagher, Chris Smeenk

UWO London

Preprint

On the geometry of the black-to-white hole transition within a single asymptotic region

Muxin Han, Carlo Rovelli, Farshid Soltani

CPT Marseille, UWO London, Perimeter Institute

Preprint
Journal

Completeness for arbitrary finite dimensions of ZXW-calculus, a unifying calculus

Boldizsár Poór, Quanlong Wang, Razin A. Shaikh, Lia Yeh, Richie Yeung, Bob Coecke

Quantinuum

Preprint
Journal

Distilling Text into Circuits

Vincent Wang-Mascianica, Jonathon Liu, Bob Coecke

Quantinuum

Preprint

Basic ZX-calculus for students and professionals

Bob Coecke

Quantinuum

Preprint

Hybrid nonlocality via atom photon interactions with and without impurities

Pritam Halder, Ratul Banerjee, Saptarshi Roy, Aditi Sen De

QICI Hong Kong

Preprint

Indeterminism and Bell nonlocality with classical systems

Lorenzo Giannelli, Carlo Maria Scandolo, Giulio Chiribella

QICI Hong Kong

Preprint

Unextendible product bases from orthogonality graphs

Fei Shi, Ge Bai, Xiande Zhang, Qi Zhao, Giulio Chiribella

QICI Hong Kong

Preprint

Geometry Transition in Spinfoams

Marios Christodoulou, Fabio D’Ambrosio, Charalampos Theofilis

IQOQI Vienna

Preprint

Quantum Reference Frames at the Boundary of Spacetime

Viktoria Kabel, Časlav Brukner, Wolfgang Wieland

IQOQI Vienna

Preprint

Loop Quantum Gravity and Quantum Information

Eugenio Bianchi, Etera R. Livine

IGC at Penn State

Preprint
Journal

Entanglement, causality and quantum networks

Emanuele Polino and Fabio Sciarrino

QILab Rome

Preprint
Journal

Emergence of Riemannian Quantum Geometry

Hal M. Haggard, Jerzy Lewandowski, Hanno Sahlmann

Bard College

Preprint

Quantum mechanics and Alexander Bogdanov’s worldview: A conversation

Carlo Rovelli, Michael C. Jackson

CPT Marseille,

Preprint
Journal

Summing bulk quantum numbers with Monte Carlo in spin foam theories

Pietro Dona, Pietropaolo Frisoni

UWO London

Preprint
Journal

Any consistent coupling between classical gravity and quantum matter is fundamentally irreversible

Thomas D. Galley, Flaminia Giacomini, John H. Selby

ETH Zürich

Preprint

Modelling quantum particles falling into a black hole: the deep interior limit

Alejandro Perez, Salvatore Ribisi, Sami Viollet

CPT Marseille

Preprint
Journal

Do We Have Any Viable Solution to the Measurement Problem?

Emily Adlam

UWO London

Preprint
Journal

Spinfoams and high performance computing

Pietro Dona, Muxin Han, Hongguang Liu

UWO London

Preprint
Journal

Contemporary Philosophical Perspectives on the Cosmological Constant

Adam Koberinski, Bridget Falck, Chris Smeenk

UWO London

Preprint
Journal

How to sum and exponentiate Hamiltonians in ZXW calculus

Razin A. Shaikh, Quanlong Wang, Richie Yeung

Quantinuum

Preprint

Quantum diffeomorphisms cannot make indefinite causal order definite

Anne-Catherine de la Hamette, Viktoria Kabel, Marios Christodoulou, Časlav Brukner

IQOQI Vienna

Preprint

Philosophical Foundations of Loop Quantum Gravity

Carlo Rovelli, Francesca Vidotto

CPT Marseille, UWO London, Perimeter Institute, UWO London

Preprint

Cosmological constraints on unimodular gravity models with diffusion

Susana J. Landau, Micol Benetti, Alejandro Perez, Daniel Sudarsky

CPT Marseille

Preprint

Geometry from local flatness in Lorentzian spin foam theories

Pietro Dona

UWO London

Preprint
Journal

Constructive Axiomatics in Spacetime Physics Part II: Constructive Axiomatics in Context

Emily Adlam, Niels Linnemann, James Read

UWO London

Preprint

How causation is rooted into thermodynamics

Carlo Rovelli

CPT Marseille, UWO London, Perimeter Institute

Preprint

Experimental superposition of time directions

Teodor Strömberg, Peter Schiansky, Marco Túlio Quintino, Michael Antesberger, Lee Rozema, Iris Agresti, Časlav Brukner, Philip Walther

IQOQI Vienna

Preprint

On the Role of Fiducial Structures in Minisuperspace Reduction and Quantum Fluctuations in LQC

Fabio M. Mele, Johannes Münch

OIST, CPT Marseille

Preprint

Witnessing the non-objectivity of an unknown quantum dynamics

Davide Poderini, Giovanni Rodari, George Moreno, Emanuele Polino, Ranieri Nery, Alessia Suprano, Cristhiano Duarte, Fabio Sciarrino, Rafael Chaves

QILab Rome

Preprint

Quantum Euler angles and agency-dependent spacetime

Giovanni Amelino-Camelia, Vittorio D’Esposito, Giuseppe Fabiano, Domenico Frattulillo, Philipp A. Hoehn, Flavio Mercati

OIST

Preprint

Unpredictability is perfectly possible in a deterministic universe

Chiara Marletto, Vlatko Vedral

Oxford Physics Department

Preprint

Experimental demonstration of input-output indefiniteness in a single quantum device

Yu Guo, Zixuan Liu, Hao Tang, Xiao-Min Hu, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Giulio Chiribella

QICI Hong Kong

Preprint

Witnessing superpositions of causal orders by weak measurements at a given time

Onur Pusuluk, Zafer Gedik, Vlatko Vedral

Oxford Physics Department

Preprint

Addressable quantum gates

Pablo Arrighi, Christopher Cedzich, Marin Costes, Ulysse Rémond, Benoît Valiron

Paris-Saclay

Preprint
Journal

Wigner’s friend and relational objectivity

Caslav Brukner

IQOQI Vienna

Preprint
Journal

Inference of gravitational field superposition from quantum measurements

Chris Overstreet, Joseph Curti, Minjeong Kim, Peter Asenbaum, Mark A. Kasevich, Flaminia Giacomini

ETH Zürich

Preprint

Measuring incompatibility and clustering quantum observables with a quantum switch

Ning Gao, Dantong Li, Anchit Mishra, Junchen Yan, Kyrylo Simonov, Giulio Chiribella

QICI Hong Kong

Preprint
Journal

Quantum States of Fields for Quantum Split Sources

Lin-Qing Chen, Flaminia Giacomini, Carlo Rovelli

ETH Zürich, CPT Marseille, UWO London, Perimeter Institute, Université Libre Bruxelles

Preprint
Journal

Markov Chain Monte Carlo methods for graph refinement in Spinfoam Cosmology

Pietropaolo Frisoni, Francesco Gozzini, Francesca Vidotto

UWO London

Preprint
Journal

Diffuse emission from black hole remnants

Sina Kazemian, Mateo Pascual, Carlo Rovelli, Francesca Vidotto

CPT Marseille, UWO London, Perimeter Institute, UWO London

Preprint
Journal

Existence of processes violating causal inequalities on time-delocalised subsystems

Julian Wechs, Cyril Branciard, Ognyan Oreshkov

Université Libre Bruxelles

Preprint
Journal

Gravitational time dilation as a resource in quantum sensing

Carlo Cepollaro, Flaminia Giacomini, Matteo G. A. Paris

IQOQI Vienna, Perimeter Institute

Preprint
Journal

Does Science need Intersubjectivity? The Problem of Confirmation in Orthodox Interpretations of Quantum Mechanics

Emily Adlam

UWO London

Preprint
Journal

Locally mediated entanglement through gravity from first principles

Marios Christodoulou, Andrea Di Biagio, Markus Aspelmeyer, Časlav Brukner, Carlo Rovelli, Richard Howl

, CPT Marseille, UWO London, Perimeter Institute, Royal Holloway

Preprint
Journal

Quantum communication through devices in an indefinite input-output direction

Zixuan Liu, Ming Yang, Giulio Chiribella

QICI Hong Kong

Preprint
Journal

Generic features of a polymer quantum black hole

Johannes Münch, Alejandro Perez, Simone Speziale, Sami Viollet

CPT Marseille

Preprint
Journal

Wald-Zoupas prescription with (soft) anomalies

Gloria Odak, Antoine Rignon-Bret, Simone Speziale

CPT Marseille

Preprint
Journal

Experimental nonclassicality in a causal network without assuming freedom of choice

Emanuele Polino, Davide Poderini, Giovanni Rodari, Iris Agresti, Alessia Suprano, Gonzalo Carvacho, Elie Wolfe, Askery Canabarro, George Moreno, Giorgio Milani, Robert W. Spekkens, Rafael Chaves, Fabio Sciarrino

QILab Rome

Preprint
Journal

Time, space and matter in the primordial universe

Francesca Vidotto

UWO London

Preprint
Journal

Metriplectic geometry for gravitational subsystems

Viktoria Kabel, Wolfgang Wieland

IQOQI Vienna

Preprint
Journal

Radiative corrections to the Lorentzian EPRL spin foam propagator

Pietro Donà, Pietropaolo Frisoni, Edward Wilson-Ewing

UWO London

Preprint
Journal

Tabletop Experiments for Quantum Gravity Are Also Tests of the Interpretation of Quantum Mechanics

Emily Adlam

UWO London

Preprint
Journal

The nonequilibrium cost of accurate information processing

Giulio Chiribella, Fei Meng, Renato Renner, Man-Hong Yung

QICI Hong Kong

Preprint
Journal

Watching the Clocks: Interpreting the Page-Wootters Formalism and the Internal Quantum Reference Frame Programme

Emily Adlam

UWO London

Preprint
Journal