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Harshdeep Singh (Chalmers University of Technology)5/4/26, 2:30 PMTalk
Different quantum hardware of the current NISQ generation have a different basis set of quantum operations and a limited connectivity among different qubits, which requires the execution of a general quantum circuit to undergo a lot of pre-processing. Quantum circuit compilation is the process of making quantum circuits executable on a particular quantum device. This usually involves multiple...
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Raam Uzdin (Hebrew University of Jerusalem)5/4/26, 3:00 PMTalk
Quantum error mitigation (QEM) infers noiseless expectation values by combining outcomes from intentionally modified, noisy variants of a target quantum circuit. Unlike quantum error correction, QEM requires no additional hardware resources and is therefore routinely employed in experiments on contemporary quantum processors. A central limitation of QEM is its substantial sampling overhead,...
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Mirko Consiglio (University of Malta)5/4/26, 3:30 PMTalk
he quantum approximate optimization algorithm (QAOA) has emerged as a promising candidate for demonstrating quantum advantage on noisy intermediate-scale quantum (NISQ) devices. While various QAOA parameterization schemes exist, ranging from the original single-angle approach to the more expressive multi-angle quantum approximate optimization algorithm (MA-QAOA) and automorphic-angle quantum...
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Rhitaparna Pal (Indian Institute of Technology Mandi)5/4/26, 4:20 PMPoster
The goal of the bulk reconstruction program is to construct boundary representations of fields in asymptotically Anti-de Sitter spacetimes. In this paper, we extend the program by computing the boundary representation of massless fields in an Achucarro-Ortiz black hole spacetime. We obtain analytic expressions for smearing functions in both the exterior and interior of the black hole. We also...
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Ivan Fattori5/4/26, 4:20 PMPoster
Quantum reservoir computing is very promising due to its energy efficiency and high operating speed. A key paradigm of this information processing is represented by the quantum memristor[1], which has been implemented in the photonic platform. Their predictive capabilities have already been demonstrated experimentally [2]. This work focuses on implementing cascaded photonic memristors to...
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Ms Hind Adawi (Jazan university)5/4/26, 4:20 PMPoster
Abstract
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Quantum critical points (QCPs) in ferromagnetic alloys arise from disorder and are characterized by quantum Griffiths phases (QGPs) - regions containing dynamic cluster formations. Previous research on Ni1-xVx alloys near the critical concentration xc employed muon spin relaxation (μSR) techniques [1], providing evidence for QGP characteristics. Ni1-xCrx alloys are expected to... -
Mr William Perrault (Centre de Nanosciences et de Nanotechnologies (C2N) & Quandela)5/4/26, 4:20 PMPoster
On the road to achieving Fault-Tolerant Quantum Computing (FTQC), error correction on qubits is a necessary milestone for quantum computers to overperform the best classical supercalculators in the world. Recently, a new hybrid framework known as Spin-Optical Quantum Computing (SPOQC) [1] emerged and is very promising. It consists of entangling spins with photons, where the spin acts as the...
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Rajesh Asapanna (University of lille Lille, CNRS, UMR 8523 – PhLAM – Physique des Lasers Atomes et Molécules)5/4/26, 4:20 PMPoster
Discrete-time quantum walks (DTQWs) are a fundamental tool in quantum information processing, enabling coherent control over unitary dynamics and the exploration of complex behavior arising from ordered sequences of unitary operations. These dynamics can also be emulated using classical coherent light in linear optical systems, providing a flexible platform for studying phenomena such as...
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Matias Gabriel Ginzburg (SISSA)5/4/26, 4:20 PMPoster
I will present the results from our latest work on the mean-field regime of non-Hermitian Hamiltonians. Mean-field theory approximates complex many-body quantum dynamics through an effective single-particle evolution governed by nonlinear equations. In the standard setting of Hermitian Hamiltonians, such a mean-field limit is by now well understood and leads to the Hartree or Gross–Pitaevskii...
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Adrita Chakraborty (AGH University of Science and Technology)5/4/26, 4:20 PMPoster
We propose a 2D/1D quantum/classical correspondence between a 1+1D $\phi^4$ interacting renormalizable scalar quantum field theory with Lifshitz scaling (LFT) and a 1D nonunitary $\mathcal{PT}$ symmetric Euclidean classical theory by developing a Rokhsar-Kivelson family of Lifshitz groundstates. We construct the kernel propagators of our chosen Lifshitz field theory by solving the equivalent...
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Florian Meinert (Universität Stuttgart)5/5/26, 9:00 AMTalk
Highly excited atoms named after Janne Rydberg have played an important role throughout the history of atomic physics. In recent years, their strong mutual interaction was key to realize quantum computers and simulators with individual atoms trapped in optical tweezer arrays. Coherence times or gate fidelities reached on these devices are, however, fundamentally limited by the lifetime of the...
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Guido Menichetti (Planckian)5/5/26, 10:00 AMTalk
Scaling current superconducting quantum computing architectures requires the linear scaling of their control electronics. A fault-tolerant quantum system would thus require millions of control wires and electronic channels, which is infeasible due to engineering and economical constraints. At Planckian, we have developed several proposals to overcome this “wiring bottleneck” using global...
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Giulia Ferrini (Chalmers)5/5/26, 11:00 AMTalk
Continuous-variable (CV) systems—described in terms of observables with a continuous spectrum, such as the position and momentum operators of a bosonic field—are attracting increasing interest as a platform for developing scalable and reliable quantum computing architectures.
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In this advanced two-part short course, I will introduce the principles of quantum computation with continuous... -
Marco Ballarin (Quantinuum)5/6/26, 10:00 AMTalk
We study an adiabatic variant of the variational quantum eigensolver (VQE) in which VQE is performed iteratively for a sequence of Hamiltonians along an adiabatic path. We derive the conditions under which gradient-based optimization successfully prepares the adiabatic ground states. These conditions show that the barren plateau problem and local optima can be avoided. Additionally, we propose...
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Marco Riccardi (Planckian srl)5/6/26, 2:00 PMTalk
Scaling current superconducting quantum computing architectures requires the linear scaling of their control electronics. A fault-tolerant quantum system would thus require millions of control wires and electronic channels, which is infeasible due to engineering and economical constraints. At Planckian, we have developed several proposals to overcome this "wiring bottleneck" using global...
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Giovanna Sammarco Tancredi (Chalmers University of Technology)5/6/26, 2:30 PMTalk
Superconducting circuits are among the leading platforms for building scalable quantum
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computers, offering a promising path toward practical quantum information processing.
In my talk, I will discuss the building blocks of a superconducting-based quantum
computer and present recent results and performances of the 25-qubit processor,
currently in operation at Chalmers. -
Beatrice Polacchi (1) Sapienza Università di Roma, Dipartimento di Fisica, Roma, Italy; 2) Sparrow Quantum ApS, Copenhagen, Denmark)5/7/26, 10:00 AMTalk
Photons offer a promising platform for several quantum technology applications. While the realization of universal fault-tolerant quantum processors remains challenging, recent advances in high-performance deterministic single-photon sources based on semiconductor quantum dots, single-photon detectors, and integrated circuits paved the way for demonstrations of quantum computational tasks...
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5. All-optical generation of high quality GKP qubits for photonic cluster states using atomic arraysPanagiotis Tselifis (ICFO - The Institute of Photonic Sciences)5/7/26, 2:00 PMTalk
Measurement-based quantum computation with continuous variables [Menicucci et al., 2014], implemented using photonic modes, constitutes a highly promising platform for realizing universal, fault-tolerant, and scalable quantum computation.
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This paradigm relies on the generation of large-scale entangled resource states (cluster states) which serve as a computational substrate upon which... -
Arnulf Snedker-Nielsen (The Niels Bohr Institute)5/7/26, 2:30 PMTalk
Colour centres in silicon have great potential as single photon sources for quantum technologies. Some of them, like the T centre, also possess optically-active spins that enable spin-photon interfaces for generating entangled photons and multi-spin registers. We explore the generation of several types of colour centres in silicon for mass-manufacturable silicon-on-insulator quantum devices....
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Dr Fabrizio Tamburini (Rotonium s.r.l.)5/7/26, 3:00 PMTalk
We present a room-temperature photonic quantum computing architecture based on structured-light Majorana qudits for hybrid processing from edge to cloud. The method maps finite sectors of the Majorana Tower onto spin-orbital angular momentum photonic modes, realizing a Z2 × Z2-graded encoding of high-dimensional quantum information. The resulting platform supports deterministic two qubit gate...
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Dr Giovanni Chesi (University of Pavia)5/7/26, 4:00 PMTalk
Sets of complementary observables with mutually unbiased bases (MUBs) are at the core of quantum uncertainty: Perfect knowledge of one implies maximal indetermination in all the others. This concept is captured by the uncertainty relations, which set a lower bound either on the product or on the sum of the uncertainties of the observables. In both cases, the MUBs yield the largest bound,...
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Laura Bersani (Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma and UdR Parma, INSTM, I-43124 Parma, Italy)5/7/26, 4:30 PMTalk
In the NISQ era (Noisy Intermediate-Scale Quantum era), Molecular nanomagnets (MNMs) – molecules containing one or few interacting spins – are emerging as promising building blocks for quantum technologies [1]. Since they naturally provide many accessible low-energy levels, they are particularly suitable to encode qudits, i.e. quantum digits with more than 2 levels, thus enlarging the tools of...
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Yun Li (Americal Physical Society)5/7/26, 5:00 PMTalk
In this talk, I will first provide an overview of the Physical Review journals operated by American Physical Society (APS), including their history and current scope. I will focus particularly on Physical Review X (PRX), an online-only, open-access journal that places a high value on innovation, quality, and long-term impact in the science it publishes. Then, I will explain how PRX editors...
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Carlos Benavides-Riveros (IQM Quantum Computers)5/8/26, 11:00 AMTalk
Imaginary-time evolution (ITE) underpins a broad family of algorithms for ground-state preparation, spanning diffusion Monte Carlo, simulated annealing, and quantum imaginary-time evolution. In almost all these methods, convergence is governed by the energy variance of the instantaneous state, a fundamental bottleneck that has remained unaddressed. Here we introduce generalized imaginary-time...
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Marco Intini (Università di Pisa and INFN)5/8/26, 11:30 AMTalk
In this talk, we present a new approach to improve the accuracy of ground state approximations in Variational Quantum Eigensolver (VQE) algorithms. We employ subspace representations where orthogonality is enforced via "soft-coded" constraints within the cost function, rather than "hard-coded" at the circuit level.
Similar to other subspace-based methods like Subspace-Search VQE (SSVQE) and...
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Luca Spagnoli (University of Trento)5/8/26, 12:00 PMTalk
In this talk I will discuss the connection between quantum error correction and lattice gauge theories, and how it can be exploited to find different models. The redundant degrees of freedom present in lattice gauge theories can be interpreted through the language of quantum error correction, allowing one to remove gauge redundancy while preserving locality. In particular, I will show how...
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Martin Ringbauer (University of Innsbruck)Talk
Cold trapped ions are among the leading platforms for quantum information processing, given their high degree of controllability and flexibility. I will discuss the basic principles of trapping ions, introduce the tools we use for manipulating quantum information in trapped ions, and map out the large playground that this system presents. Then we will discuss a few key experiments that...
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Xavier Bonet-Monroig (Honda Research Institute Europe GmbH)Talk
In this lecture series, we will survey the evolution of quantum algorithms over the past decade and explore plausible trajectories for the decade ahead. The discussion will trace the rise, fall, and recent resurgence of Noisy Intermediate-Scale Quantum (NISQ) computing, and examine how close, or far, we are from realizing Fault-Tolerant Quantum Computers (FTQC).
We begin with NISQ-era...
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