Sessions on QIP Conference Website

Awards and Business Meeting

Mon, 01 Jan 0001 00:00:00 +0000

Closing Remarks

Mon, 01 Jan 0001 00:00:00 +0000

Goodbye, folks! See you next year!

Coffee & Snacks

Mon, 01 Jan 0001 00:00:00 +0000

Coffee Break

Mon, 01 Jan 0001 00:00:00 +0000

Communication, Crypto and IT (Chair: Martin Larocca)

Mon, 01 Jan 0001 00:00:00 +0000

Complexity Theory (chair: Penghui Yao)

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talk 3

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talk 4a

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talks 2a: Experimental Talks

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talks 2b

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talks 2c

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talks 5a

Mon, 01 Jan 0001 00:00:00 +0000

Contributed Talks 5b

Mon, 01 Jan 0001 00:00:00 +0000

End of Day

Mon, 01 Jan 0001 00:00:00 +0000

Gala Dinner and Networking at Pazo los Escudos Hotel

Mon, 01 Jan 0001 00:00:00 +0000

The Gala Dinner this year will take place at Pazo Los Escudos.

Please don’t worry about the distance from the city center, as a series of buses will transport us there and back. The buses will depart at 19:30 from the location indicated below.

Industry Dinner & Networking

Mon, 01 Jan 0001 00:00:00 +0000

at Yuntaku Restaurant

Industry Gala

Mon, 01 Jan 0001 00:00:00 +0000

The Industry Gala is scheduled for Tuesday late afternoon. The agenda includes: Discussion Panel: Representatives from industry and academia will discuss their research in the context of industry and explore the topic of bridging the gap between academic research and the quantum industry.

Panel Members:

William John Munro, Professor, OIST – Panel Chair
Yutaka Sata, Dr. Eng., Corporate Officer, Corporate Senior Vice President, Chief Technology Officer, Chief Information Security Officer, Toshiba Corporation
Ryosei Takano, Quantum-AI Cloud Research Team, G-QuAT, National Institute of Advanced Industrial Science and Technology (AIST)
Dakshita Khurana, Assistant Professor, University of Illinois Urbana-Champaign
Tomoyuki Morimae, Associate Professor, Yukawa Institute for Theoretical Physics, Kyoto University

Sponsor Presentations:

Invited Talk: ''Adventures in Quantum Wonderland: Understanding Cryptographic Hardness in a Quantum World''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Dakshita Khurana is …

Abstract

A flurry of exciting, recent work has shown that the mathematical hardness required to realize cryptosystems such as bit commitments and secure computation in a quantum world can be significantly weaker than the hardness required for classical cryptography. This talk will discuss recent progress and some remaining challenges in understanding the assumptions that enable cryptography in a quantum world.

Invited Talk: ''Forward and Backward Mappings for Quantum Graphical Models''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Zhengfeng Ji is …

Abstract

Graphical models offer a unifying framework for various statistical learning algorithms and models. Central to these models are the forward and backward mapping problems, which have been studied through both exact and approximate algorithms. This talk explores these mapping problems within the context of quantum graphical models, where quantum states generalize classical probability distributions. The forward mapping problem involves deriving mean parameters from model parameters and is closely linked to approximating the partition function—a typically challenging task often requiring heuristics and approximations. We’ll discuss quantum belief propagation, which has shown success in one-dimensional systems, as well as variational methods such as Markov entropy decomposition that tackle the problem from an optimization perspective. The task of the backward mapping problem aims to compute model parameters from mean parameters. It is related to the Hamiltonian learning problem, a topic of growing interest in quantum information science lately. We’ll review some existing algorithms and introduce the quantum iterative scaling (QIS) algorithm that reduces the backward mapping problem to a series of forward mapping problems. We’ll present a convergence proof for QIS and demonstrate its advantages over gradient descent methods. Furthermore, we’ll explore how quasi-Newton methods can enhance QIS and gradient descent algorithms, showcasing significant efficiency improvements.

Invited Talk: ''Potential and Limitations of Near-Term Quantum Computing''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Jens Eisert is …

Abstract

Quantum computers promise the efficient solution of some highly structured computational problems that are classically intractable. While for many years they have been primarily objects of theoretical study, only recently have efforts to build intermediate-scale quantum computers taken off. This creates an interesting state of affairs, but at the same time, it begs the question of what such devices are, practically speaking, good for. In this talk, we will present some encouraging as well as—emphasizing the latter—discouraging insights into near-term quantum computing. We will discuss rigorous quantum advantages in paradigmatic problems [1,2] and explore the use of quantum computers in machine learning [3,4] and optimization [5]. The second part of the talk will focus on the significant limitations that arise. We will emphasize identifying limitations to quantum error mitigation for shallow quantum circuits in the worst case [6]. Interestingly, it may depend on the nuances of non-unital quantum noise to what extent quantum computing without error correction may be feasible [7]. We will also provide efficient classical algorithms for instances of quantum algorithms, hence “de-quantizing” them [7-9]. The talk will conclude with the note that quantum simulation remains, to date, one of the most promising applications of near-term quantum devices [10,11].

Invited Talk: ''Quantum cryptography without one-way functions''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Tomoyuki Morimae is …

Abstract

The existence of one-way functions is the minimum assumption in classical cryptography. On the other hand, in quantum cryptography where quantum computing and quantum communications are possible, recent studies have demonstrated that the existence of one-way functions is not necessarily the minimum assumption. Several new fundamental primitives have been introduced, such as pseudorandom unitaries, pseudorandom states, one-way state generators, EFI pairs, and one-way puzzles. They seem to be weaker than one-way functions, but still imply many useful applications, such as secret-key encryption, message authentication codes, digital signatures, private-key quantum money, commitments, and multiparty computations, etc. In this talk, I explain the basics of this “quantum cryptography without one-way functions” and give many open problems that I want to know the answers to.

Lab Tour and Excursion to Cíes Islands (click for more details)

Mon, 01 Jan 0001 00:00:00 +0000

The afternoon of wednesday will consist of two possible afternoon activities.

LAB TOUR

If you signed up for the lab tour, the bus will depart from the location indicated below (Rua Areal, towards the intersection with Rua Colón). The bus will leave at 15:30 and the trip to the lab will take 25 minutes. Once the lab tour is finished, the bus will bring us back to the city center.

Learning (Chair: Nai-Hui Chia)

Mon, 01 Jan 0001 00:00:00 +0000

Light Dinner

Mon, 01 Jan 0001 00:00:00 +0000

Lunch break

Mon, 01 Jan 0001 00:00:00 +0000

Physics(ish) (Chair: Alex B. Grilo)

Mon, 01 Jan 0001 00:00:00 +0000

Physics(ish) (Chair: Joseph Slote)

Mon, 01 Jan 0001 00:00:00 +0000

Poster Session Monday (Click to see the list of posters)

Mon, 01 Jan 0001 00:00:00 +0000

Posters presented in this session

Public Lecture: 'Ordenadores y criptografía cuántica: ¿qué pasa cuando los bits se vuelven cuánticos?' 'Quantum computers and cryptography: what happens when bits become quantum?'

Mon, 01 Jan 0001 00:00:00 +0000

On Monday evening at 7:00 PM, Professor Antonio Acín will give a public lecture titled ‘‘Ordenadores y criptografía cuántica: ¿qué pasa cuando los bits se vuelven cuánticos?’’ (‘‘Quantum Computers and Cryptography: What Happens When Bits Become Quantum?’’). The lecture is open to everyone, including conference participants and the general public!

The event will take place at the García Barbón Theatre, just a few meters from the conference venue. (The location of the theatre is provided below.)

Quantum Computing (chair: Srijita Kundu)

Mon, 01 Jan 0001 00:00:00 +0000

Registration & Coffee

Mon, 01 Jan 0001 00:00:00 +0000

Registration & Coffee in the OIST conference center, entrance hall.

Rump Session

Mon, 01 Jan 0001 00:00:00 +0000

TBA

Tutorial Talk: ''Computing key-rates''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Peter Brown received his PhD from the University of York (UK) in 2019 and he is currently an Assistant Professor at Télécom Paris (Institut Polytechnique de Paris). His main research interests lie within quantum information and quantum cryptography. In the latter he focuses on the development of mathematical techniques for security proofs with a particular emphasis on device-independent protocols.

Abstract

Quantum key distribution (QKD) and randomness generation (RNG) protocols involve the production of certified randomness. But how can we accurately and efficiently quantify the randomness we produced against an unknown eavesdropper? In this tutorial we will investigate the problem of computing rates of QKD and RNG protocols in different security paradigms. We will introduce the relevant entropy optimization problems that characterize rates and explore some of the techniques that have been developed to solve them.

Tutorial Talk: ''Monolithic and Hybrid Integration Technologies for Quantum Cryptography''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Dr. Taofiq Paraiso is a Team Leader at Toshiba Europe, Cambridge Research Lab, UK, where he is responsible for the development of photonic integrated circuits for quantum key distribution and quantum random number generation, as well as their system integration into practical chip-based QKD devices. Dr. Paraiso has over 15 years of academic and industrial research experience in the fields of quantum photonics, semiconductor physics, light-matter interactions and nanofabrication. He previously held research positions at the California Institute of Technology and the Max-Planck Institute for the Science of Light, Germany. He received his PhD in Physics from the Swiss Federal Institute of Technology Lausanne (EPFL) in Switzerland.

Tutorial Talk: ''Semi-device-independent quantum correlations for cryptography''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Armin Tavakoli (1993, Sweden) is since 2023 Assistant Professor at Lund University, Sweden. He obtained his PhD in 2020 at University of Geneva and was then a postdoc at IQOQI Vienna and TU Vienna. His main research work is in the field of quantum correlations, on topics such as nonlocality, entanglement, quantum communication and quantum networks.

Abstract

The semi-device-independent approach to quantum information protocols is based on the idea that all quantum devices are uncharacterized up to a mild and/or reasonable assumption. Examples can be limitations in Hilbert space dimension, energy or fidelity. In this talk, we discuss the different assumptions used to build semi-device-independent frameworks for quantum information, how they give rise to quantum-over-classical advantages, the main types of techinques used to characterise the limitations of quantum correlations, and the applications of these resouces to cryptographic tasks such as quantum key distribution and quantum random number generation.

Tutorial Talk: ''The long and winding road to the quantum internet''

Mon, 01 Jan 0001 00:00:00 +0000

Bio

Joseph M. Lukens received the B.S. degree in electrical engineering and physics in 2011 from the University of Alabama, Tuscaloosa, and the Ph.D. degree in electrical engineering from Purdue University, West Lafayette, Indiana, in 2015. Employed as a Wigner Fellow and Research Scientist in Quantum Information Science at Oak Ridge National Laboratory (ORNL) from 2015–2022, he now serves as Senior Director of Quantum Networking and Research Professor at Arizona State University, maintaining a joint faculty appointment at ORNL. His research interests encompass a variety of topics in photonic quantum information processing, optical networking, and Bayesian inference.

Updates & Announcements

Mon, 01 Jan 0001 00:00:00 +0000

Welcome Reception at Palacio de la Oliva (click for more details)

Mon, 01 Jan 0001 00:00:00 +0000

QCrypt welcomes you to Vigo with this special event included in your registration! Join us at the Palacio de La Oliva for an aperitif with fellow participants.

The venue for the welcome reception is just a 10-minute walk from the conference site, situated in the heart of Vigo’s old town.

(Location details are provided below.)

Welcoming Remarks

Mon, 01 Jan 0001 00:00:00 +0000

Welcome everybody!