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晴伸 藤村 (Harunobu Fujimura) (大阪大学)14/07/2026, 18:00Poster
The quantum Mpemba effect is a counterintuitive phenomenon in which a state with more strongly broken symmetry initially relaxes faster toward symmetry restoration. This phenomenon has recently attracted significant attention across various fields, including condensed matter physics, high-energy physics, and quantum information science. However, investigate the quantum Mpemba effect requires...
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Gabriel Wong (Oxford math institute)14/07/2026, 18:00Poster
ZX calculus provides a graphical formalism for reasoning about quantum processes, built from two interacting Frobenius algebras associated with the Z and X bases of a qubit. While it has found widespread application in quantum information and computing, its relationship to quantum field theory has only recently begun to be explored. In this work, we further develop this connection by providing...
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Emanuele Mendicelli (University of Liverpool (United Kingdom))14/07/2026, 18:00Poster
Simulating non-Abelian lattice gauge theories on quantum computers remains challenging, particularly in (3+1)-dimensions when using compact variables. The orbifold lattice formulation offers a universal and scalable framework for quantum simulation of SU(N) theories in arbitrary dimensions by using cartesian coordinates. Monte Carlo studies...
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Paolo Beltrame (University of Liverpool)14/07/2026, 18:00Poster
The axion is a well-motivated dark-matter candidate — a pseudoscalar particle originally proposed to resolve the "strong CP problem" — with a predicted mass spanning a broad range from peV to a few meV. Axions gravitationally clustered within our galaxy may be detected using haloscopes: resonant cavities immersed in a static magnetic field that stimulates the conversion of axions into...
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Ethan Laval (University of Southampton)14/07/2026, 18:00Poster
The Quantum Approximate Optimization Algorithm (QAOA)[1]
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is one of the leading variational quantum algorithms used to prepare
the ground state of gauge theories. The design of QAOA is under-
pinned by the adiabatic theorem. Recently, there has been a proposed
variation of QAOA, DC-QAOA[2], that incorporates counterdiabatic
driving in order to speed up the adiabatic process, leading to... -
Tanmay Bhore (University of Leeds)14/07/2026, 18:00Poster
Recent quantum simulation experiments by Google Quantum AI have realized disorder-free localization in lattice gauge theories without explicitly sampling disorder realizations. In such schemes, however, the effective disorder is generated by finite-dimensional gauge or ancilla degrees of freedom, raising a basic question: when does a truncated gauge field faithfully reproduce the physics of...
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Sabhyata Gupta (Institut für Theoretische Physik, Leibniz University Hannover)14/07/2026, 18:00Poster
The complexity of highly excited eigenstates is a central theme in nonequilibrium many-body physics, underpining questions of thermalization, classical simulability, and quantum information structure. In this work, considering the paradigmatic Rokhsar-Kivelson model, we connect quantum many-body scarring in Abelian lattice gauge theories to an emergent stabilizer structure. We identify a...
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Marko Maležič (University of Bonn / Helmholtz Institute for Radiation and Nuclear Physics)14/07/2026, 18:00Poster
Real-time evolution is a key primitive for quantum simulation of lattice field theories and spin models, but practical implementations are constrained by circuit depth and accumulated error. Trotter-Suzuki methods remain widely used for Hamiltonian simulation because they compile directly into structured circuits with clear error-resource tradeoffs. We present new highly efficient families of...
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Simran Singh (HISKP, University of Bonn)14/07/2026, 18:00Poster
In this talk, we present recent results on lattice QED$_3$ at finite density with both staggered and Wilson fermions, focusing on density-induced phase transitions and topological phases. On the one hand, we demonstrate the identification of density-induced phase transitions for two staggered fermion flavors using VQE inference runs on IBM quantum hardware. On the other hand, we use exact...
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Mattia Morgavi (Università degli Studi di Padova)14/07/2026, 18:00Poster
We introduce a method for the selective preparation and detection of quasiparticle wave packets, based on creation operators that generate dressed, localized excitations on top of interacting vacua of (quasi-)one-dimensional quantum lattice theories. This method exploits maximally localized Wannier functions (MLWFs) constructed from quasiparticle bands at intermediate system sizes, enabling...
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Zong-Gang Mou (University of Southampton)14/07/2026, 18:00Poster
We revisit the massive Schwinger model on a circle via the staggered fermion. Given the periodic boundary condition, the translation invariance is well defined on the lattice, and so is the momentum. Due to the topology, the relic zero-mode electric field is still dynamical after all others integrated out via the Gauss's law. We demonstrate how the gauge invariance, particularly the large...
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Robert Banks (ParityQC)14/07/2026, 18:00Poster
Simulating electromagnetic particle showers in calorimeters is a key task in HEP. To model these complex, correlated distributions on a quantum circuit, the energy data are reduced to binary or encoded into gate angles. When applied to non-binary distributions, these methods exhibit notable limitations: mapping integer numbers into qubit-compatible binary representations often destroys the...
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Dr Ashutosh Tripathi (Asia Pacific Center for Theoretical Physics (APCTP))14/07/2026, 18:00Poster
We apply the Sample-Based Krylov Quantum Diagonalization (SKQD) algorithm to the SU(2) bosonic two-matrix model, a gauge theory sharing the quartic commutator-squared interaction and bosonic truncation structure of the BFSS and BMN matrix models relevant to holography. Using exact statevector simulation, we demonstrate that SKQD achieves machine-precision ground-state energies (~10^-16) at...
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Alexander Tomlinson (University of Southampton)14/07/2026, 18:00Poster
In Wilson's formulation of lattice gauge theories, the gauge fields are represented using link variables which exist in an infinite-dimensional Hilbert space. Quantum link models promote these link variables to operators such that the Hilbert space in finite-dimensional, thus giving a potential avenue to explore quantum simulation. We investigate the SU(2) gauge theory quantum link model in...
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Enrico Calogero Domanti (Instituto de Física Teórica UAM-CSIC Madrid)14/07/2026, 18:00Poster
With the advent of quantum simulators, exploring exotic collective phenomena in lattice models with local symmetries and unconventional geometries is at reach of near-term experiments. Motivated by recent progress in this direction, we study a $\mathbb{Z}_2$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell hosting the...
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Kei-Ichi Kondo (Chiba University)14/07/2026, 18:00Poster
I propose a defect-resolved benchmark program for quantum simulations of color confinement in non-Abelian gauge theory. The starting point is the dimensional reduction of symmetric $SU(2)$ instantons: an $SO(2)$-symmetric instanton gives a hyperbolic monopole on $H^3$, while an $SO(3)$-symmetric instanton gives a hyperbolic vortex on $H^2$. These analytic configurations define controlled...
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Kei-Ichi Kondo (Chiba University)14/07/2026, 18:00Poster
We discuss a controllable reduced sector of four-dimensional Euclidean Yang--Mills theory obtained from symmetric instantons through conformal equivalence and dimensional reduction. In this framework, circle-symmetric and spherically symmetric instantons give rise to hyperbolic magnetic monopoles on $H^3$ and hyperbolic vortices on $H^2$, providing a unified description of topological defects...
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33. Variational Monte Carlo algorithm for Hamiltonian lattice QED in 2+1D coupled to Wilson fermionsPranay Naredi (Deutsches Elektronen-Synchrotron (DESY), The Cyprus Institute)14/07/2026, 18:00Poster
We present a Hamiltonian-based variational Monte Carlo algorithm for (2+1)-dimensional lattice QED with Wilson fermions. The ground state of the model is approximated by a gauge-invariant variational ansatz. The optimal variational parameters are obtained by minimizing the energy expectation value, which can be efficiently evaluated via Monte Carlo sampling for any given parameter set. Unlike...
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Daisy Lindley (Queen Mary University of London)14/07/2026, 18:00
Quantum sensing for particle-physics applications often relies on coherent quantum systems in which weak external perturbations are converted into measurable shifts in transition frequency or accumulated quantum phase1,2. Molecular spin qubits provide a chemically tuneable platform for developing spin-based quantum sensing. In these systems, an applied electric field perturbs the spin...
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