TQC Conference Website

End-to-end quantum algorithms for tensor problems
Enrico Fontana; Sivaprasad Omanakuttan; Junhyung Lyle Kim; Joseph Sullivan; Michael Perlin; Ruslan Shaydulin; Shouvanik Chakrabarti
Quantum algorithms through graph composition
Arjan Cornelissen

track

11 30

Cryptography

Salle Sherbrooke B

Track B

Randomness from causally independent processes
Martin Sandfuchs; Carla Ferradini; Renato Renner
A complexity theory for non-local quantum computation
Andreas Bluhm; Simon Höfer; Alex May; Mikka Stasiuk; Philip Verduyn Lunel; Henry Yuen

track

11 30

Error Correction

Salle Sherbrooke C

Track C

Unitary synthesis with fewer T gates
Xinyu Tan
Characterization of permutation gates in the third level of the Clifford hierarchy
Zhiyang (Sunny) He; Luke Robitaille; Xinyu Tan

track

12 30

Lunch break (Lunch not included)

logistics

14 00

Learning

Salle Sherbrooke A

Track A

Reconquering Bell sampling on qudits: stabilizer learning and testing, quantum pseudorandomness bounds, and more
Jonathan Allcock; Joao F. Doriguello; Gábor Ivanyos; Miklos Santha
Clifford testing: algorithms and lower bounds
Marcel Hinsche; Zongbo Bao; Philippe van Dordrecht; Jens Eisert; Jop Briët; Jonas Helsen

track

14 00

Foundations

Salle Sherbrooke B

Track B

Composable simultaneous purification: when all communication scenarios reduce to spatial correlations
Matilde Baroni; Dominik Leichtle; Ivan Šupić; Damian Markham; Marco Túlio Quintino
Quantum statistics in the minimal Bell scenario
Victor Barizien; Jean-Daniel Bancal

track

14 00

Sampling Supremacy

Salle Sherbrooke C

Track C

The Power of Quantum Circuits in Sampling
Guy Blanc; Caleb Koch; Jane Lange; Carmen Strassle; Li-Yang Tan
Verifiable Quantum Advantage via Optimized DQI Circuits
Tanuj Khattar; Noah Shutty; Craig Gidney; Adam Zalcman; Noureldin Yosri; Dmitri Maslov; Ryan Babbush; Stephen P. Jordan

track

15 00

Coffee Break (Included)

logistics

15 30

Algorithms

Salle Sherbrooke A

Track A

Classification and implementation of unitary-equivariant and permutation-invariant quantum channels
Elias Theil; Laura Mancinska
High-dimensional quantum Schur transforms and Quantum Fourier transform for the symmetric group
Carli Bruinsma; Adam Burchardt; Jiani Fei; Dmitry Grinko; Martin Larocca; Maris Ozols; Sydney Timmerman; Vladyslav Visnevskyi
Efficient quantum circuits for high-dimensional representations of SU(n) and Ramanujan quantum expanders
Vishnu Iyer; Siddhartha Jain; Stephen Jordan; Rolando Somma

track

15 30

Complexity

Salle Sherbrooke B

Track B

On the Pure Quantum Polynomial Hierarchy and Quantified Hamiltonian Complexity
Sabee Grewal; Dorian Rudolph
On the complexity of unique quantum witnesses and quantum approximate counting
Anurag Anshu; Jonas Haferkamp; Yeongwoo Hwang; Quynh T. Nguyen
Fine-Grained Complexity for Quantum Problems from Size-Preserving Circuit-to-Hamiltonian Constructions
Nai-Hui Chia; Atsuya Hasegawa; Francois Le Gall; Yu-Ching Shen

track

15 30

Simulation of Quantum Circuits

Salle Sherbrooke C

Track C

Simulating noisy IQP circuits under amplitude damping
Shravan Shravan; Mohsin Raza; Ariel Shlosberg
Classically simulating noisy quantum circuits via exponential decay of conditional correlation
Yifan (Frank) Zhang; Su-un Lee; Sarang Gopalakrishnan; Soumik Ghosh; Changhun Oh; Kyungjoo Noh; Bill Fefferman; Liang Jiang
Limitations of Noisy Geometrically Local Quantum Circuits
Jon Nelson; Joel Rajakumar; Michael J. Gullans

track

17 30

Poster Session & Welcome Cocktail (1 drink and appetizers included)

logistics

19 30

End of Day

logistics

Tuesday, 1 Sep 2026

08 30

Morning Fuel (Coffee & Pastries) (included)

logistics

09 00

Invited Speaker

invited

10 30

Coffee Break (Included)

logistics

11 00

Error Correction

Salle Sherbrooke A

Track A

The code distance of Floquet codes (Best Paper Award)
Keller Blackwell; Jeongwan Haah
Entangling logical qubits without physical operations
Shayan Majidy; Jin Ming Koh; Anqi Gong; Andrei C. Diaconu; Daniel Bochen Tan; Alexandra A. Geim; Michael J. Gullans; Norman Y. Yao; Mikhail D. Lukin
Space–Time Efficient Transversal Architectures for Large-Scale Quantum Computation
Hengyun Zhou; Casey Duckering; Chen Zhao; Dolev Bluvstein; Madelyn Cain; Aleksander Kubica; Sheng-Tao Wang; Mikhail Lukin

track

11 00

Cryptography

Salle Sherbrooke B

Track B

A New Approach to Arguments of Quantum Knowledge
James Bartusek; Ruta Jawale; Justin Raizes; Kabir Tomer
Classical Obfuscation of Quantum Circuits via Publicly-Verifiable QFHE
James Bartusek; Aparna Gupte; Saachi Mutreja; Omri Shmueli
Plugging Leaks in Fault-Tolerant Quantum Computation and Verification
Theodoros Kapourniotis; Dominik Leichtle; Luka Music; Harold Ollivier

track

11 00

Simulations

Salle Sherbrooke C

Track C

Quantum simulation of chemistry via quantum fast multipole method
Dominic Berry; Kianna Wan; Andrew Baczewski; Elliot Eklund; Arkin Tikku; Ryan Babbush
Quantum lower bounds for simulating fluid dynamics
Abtin Ameri; Joseph Carolan; Andrew M. Childs; Hari Krovi
Rapid Mixing of Quantum Gibbs Samplers for Weakly-Interacting Quantum Systems
Štěpán Šmíd; Richard Meister; Mario Berta; Roberto Bondesan

track

12 30

Lunch break (Lunch not included)

logistics

14 00

Learning Hamiltonians

Salle Sherbrooke A

Track A

Certifying and learning local quantum Hamiltonians
Andreas Bluhm; Matthias C. Caro; Francisco Escudero Gutiérrez; Junseo Lee; Aadil Oufkir; Cambyse Rouzé; Myeongjin Shin
Nearly optimal algorithms to learn sparse quantum Hamiltonians
Amira Abbas; Nunzia Cerrato; Francisco Escudero Gutiérrez; Dmitry Grinko; Francesco Anna Mele; Pulkit Sinha
Learning and certification of local time-dependent quantum dynamics and noise
Daniel Stilck França; Tim Moebus; Albert Werner; Cambyse Rouzé

track

14 00

Fermionic Computation

Salle Sherbrooke B

Track B

Complexity of Fermionic 2-SAT
Maarten Stroeks; Barbara M. Terhal
Fermionic Insights into Measurement-Based Quantum Computation: Circle Graph States Are Not Universal Resources
Brent Harrison; Vishnu Iyer; Ojas Parekh; Kevin Thompson; Andrew Zhao
Optimizing fermionic Hamiltonians with classical interactions
Maarten Stroeks; Barbara M. Terhal; Yaroslav Herasymenko

track

14 00

Information Theory

Salle Sherbrooke C

Track C

Tight and Robust Consecutive Measurement Theorems with Applications to Quantum Cryptography
Chen-Xun Weng; Minglong Qin; Yanglin Hu; Marco Tomamichel
A Family of Information-Theoretic de Finetti Theorems for Constrained Optimization
Mario Berta; Omar Fawzi; Gereon Koßmann; Martin Plavála; Julius A. Zeiss
Channel Coding and Quantum Channel Discrimination against Jammers: a Minimax Approach
Mario Berta; Michael Xuan Cao; Kun Fang; Yongsheng Yao

track

15 30

Coffee Break (Included)

logistics

16 00

Interactive Proofs

Salle Sherbrooke A

Track A

Unentanglement and Post-Measurement Branching in Quantum Interactive Proofs
Sabee Grewal; William Kretschmer
Quantum Merlin-Arthur with an Internally Separable Proof
Roozbeh Bassirian; Bill Fefferman; Itai Leigh; Kunal Marwaha; Pei Wu

track

16 00

Circuits

Salle Sherbrooke B

Track B

Unified Architecture for Quantum Lookup Tables
Shuchen Zhu; Aarthi Sundaram; Guang Hao Low
Quadratic tensors as a unification of Clifford, Gaussian, and free-fermion physics
Andreas Bauer; Seth Lloyd

track

16 00

Foundations

Salle Sherbrooke C

Track C

Positive maps and extendibility hierarchies from copositive matrices
Aabhas Gulati; Ion Nechita; Sang-Jun Park
The Necessity of Extending Quantum Prior Beliefs
Mingxuan Liu; Ge Bai; Valerio Scarani

track

19 30

End of Day

logistics

Wednesday, 2 Sep 2026

08 30

Morning Fuel (Coffee & Pastries) (included)

logistics

09 00

Invited Speaker

invited

10 00

Coffee Break (Included)

logistics

10 30

Algorithms

Salle Sherbrooke A

Track A

A Sharp Computational Phase Transition for the Partition Function of the Transverse-Field Ising Model
Alistair Sinclair; Thuy-Duong Vuong
Dequantization Barriers for Guided Stoquastic Hamiltonians
Shrinidhi Teganahally Sridhara; Yassine Hamoudi; Yvan Le Borgne
Hiding, Shuﬄing, and Cycle Finding: Quantum Algorithms on Edge Lists
Amin Shiraz Gilani; Daochen Wang; Pei Wu; Xingyu Zhou
Quantum Search With Generalized Wildcards
Arjan Cornelissen; Nikhil S. Mande; Subhasree Patro; Nithish Raja; Swagato Sanyal

track

10 30

Bosonic Computation

Salle Sherbrooke B

Track B

Entanglement area law in interacting bosons: from Bose-Hubbard, φ⁴, and beyond
Donghoon Kim; Tomotaka Kuwahara
Quantum computation with qubit-oscillator systems: Trading modes against energy
Lukas Brenner; Beatriz Dias; Robert König
Energy, Bosons and Computational Complexity
Ulysse Chabaud; Sevag Gharibian; Saeed Mehraban; Arsalan Motamedi; Hamid Reza Naeij; Dorian Rudolph; Dhruva Sambrani
Higher moment theory and learnability of bosonic states
Joseph T. Iosue; Yu-Xin Wang; Ishaun Datta; Soumik Ghosh; Changhun Oh; Bill Fefferman; Alexey V. Gorshkov

track

10 30

Error Correction

Salle Sherbrooke C

Track C

Efficient magic-state generation with quantum tricycle codes
Varun Menon; J. Pablo Bonilla Ataides; Rohan Mehta; Andi Gu; Daniel Bochen Tan; Mikhail D. Lukin
Transversal Dimension Jump for Product qLDPC Codes
Christine Li; John Preskill; Qian Xu
Topology for qLDPC: transversal non-Clifford gates and magic state fountain on homological product codes with constant rate and beyond the N¹ᐟ³ distance barrier
Guanyu Zhu
High-Performance qLDPC Codes with Efficient Layouts on Flying Qubits
Edwin Tham; Nicolas Delfosse; Min Ye; Arda Aydin; John G. Gamble; Ilia Khait

track

12 30

Lunch Break and Business Meeting (lunch included)

Main foyer / Salle Sherbrooke

logistics

14 00

Excursions (~14h – 18h30)

A) Quantum Ecosystem (I.Q.; 3iT; EQ1)
B) Nature: Coaticook
C) Cultural: City of Sherbrooke

logistics

19 30

Board Games

logistics

22 00

End of Day

logistics

Thursday, 3 Sep 2026

08 30

Morning Fuel (Coffee & Pastries) (included)

logistics

09 00

Algorithms

Salle Sherbrooke A

Track A

Limitations of Decoded Quantum Interferometry for MaxCut
Ojas Parekh
On the Complexity of Decoded Quantum Interferometry
Kunal Marwaha; Bill Fefferman; Alexandru Gheorghiu; Vojtech Havlicek

track

09 00

Cryptography

Salle Sherbrooke B

Track B

Powerful Primitives in the Bounded Quantum Storage Model
Mohammed Barhoush; Louis Salvail
Unclonable Cryptography in Linear Quantum Memory
Omri Shmueli; Mark Zhandry

track

09 00

Random Unitaries

Salle Sherbrooke C

Track C

Will it glue? On short-depth designs beyond the unitary group
Lorenzo Grevink; Jonas Haferkamp; Markus Heinrich; Jonas Helsen; Marcel Hinsche; Thomas Schuster; Zoltán Zimborás
Constant-Overhead Entanglement Distillation via Scrambling
Andi Gu; Lorenzo Leone; Kenneth Goodenough; Sumeet Khatri

track

10 00

Coffee Break (Included)

logistics

10 30

Learning

Salle Sherbrooke A

Track A

Near-optimal performance of square-root measurement for general score functions and quantum ensembles
Hemant Mishra; Ludovico Lami; Mark Wilde
Quantum Metrology with Constrained Ancillae
Qiushi Liu; Yuxiang Yang
Measuring gravitational lensing time delays with quantum information processing
Zhenning Liu; William DeRocco; Shiming Gu; Emil T. Khabiboulline; Soonwon Choi; Andrew M. Childs; Anson Hook; Alexey V. Gorshkov; Daniel Gottesman

track

10 30

Complexity

Salle Sherbrooke B

Track B

Complexity Theory for Quantum Promise Problems
Nai-Hui Chia; Kai-Min Chung; Tzu-Hsiang Huang; Jhih-Wei Shih
On the Complexity of the Circuit Width Problem
Zhengfeng Ji; Yinchen Liu; Zhe'ou Zhou
Magic and communication complexity
Uma Girish; Alex May; Natalie Parham; Henry Yuen

track

10 30

Information Theory

Salle Sherbrooke C

Track C

Optimal Qubit Purification and Unitary Schur Sampling via Random SWAP Tests (Best Student Paper Award)
Shrigyan Brahmachari; Austin Hulse; Henry Pfister; Iman Marvian
Power and limitations of distributed quantum state purification
Benchi Zhao; Yu-Ao Chen; Xuanqiang Zhao; Chengkai Zhu; Giulio Chiribella; Xin Wang
Universal thermodynamic implementation of a process with a variable work cost
Philippe Faist

track

12 00

Lunch break (Lunch not included)

logistics

13 30

Tensor Networks

Salle Sherbrooke A

Track A

Beyond Belief Propagation: Cluster-Corrected Tensor Network Contraction with Exponential Convergence
Siddhant Midha; Yifan Frank Zhang
Spectral Small-Incremental Entangling: Breaking Quasi-Polynomial Complexity Barriers in Long-Range Interacting Systems
Tomotaka Kuwahara; Yusuke Kimura; Hugo Mackay; Ayumi Ukai; Carla Rubiliani; Donghoon Kim; Yosuke Mitsuhashi; Hideaki Nishikawa; Cheng Shang

track

13 30

Cryptography

Salle Sherbrooke B

Track B

Lower bounds on non-local computation from controllable correlation
Richard Cleve; Alex May
A robust and composable device-independent protocol for oblivious transfer using (fully) untrusted quantum devices in the bounded storage model
Rishabh Batra; Sayantan Chakraborty; Rahul Jain; Upendra Kapshikar

track

13 30

Optimization

Salle Sherbrooke C

Track C

Provable Speedups for Convex Optimization via Quantum Dynamics
Shouvanik Chakrabarti; Dylan Herman; Jacob Watkins; Enrico Fontana; Brandon Augustino; Junhyung Lyle Kim; Marco Pistoia
Quantum Speedups for Sampling and Non-convex Optimization with Stochastic Oracles
Guneykan Ozgul; Xiantao Li; Mehrdad Mahdavi; Chunhao Wang

track

14 30

Coffee Break (Included)

logistics

15 00

AMA Session

plenary

18 30

Banquet (Included)

logistics

20 30

End of Day

logistics

Friday, 4 Sep 2026

08 30

Hotel Check-out

Check-out time is 12:00 PM.
We recommend checking out in the morning before the talks.
A secure room will be available to store your luggage during the talks.

checkout

08 30

Morning Fuel (Coffee & Pastries) (included)

logistics

09 00

Invited Speaker

invited

10 00

Coffee Break (Included)

logistics

10 30

Learning

Salle Sherbrooke A

Track A

Cloning is as Hard as Learning for Stabilizer States
Nikhil Bansal; Matthias C. Caro; Gaurav Mahajan
Randomized measurements for multi-parameter quantum metrology
Sisi Zhou; Senrui Chen
Instance-Optimal Quantum State Certification with Entangled Measurements
Ryan O'Donnell; Chirag Wadhwa

track

10 30

Cryptography

Salle Sherbrooke B

Track B

The Black-Box Simulation Barrier Persists in a Fully Quantum World
Nai-Hui Chia; Kai-Min Chung; Xiao Liang; Jiahui Liu
A Unified Approach to Quantum Key Leasing with a Classical Lessor
Fuyuki Kitagawa; Jiahui Liu; Shota Yamada; Takashi Yamakawa
Post-Quantum Security of Block Cipher Constructions
Gorjan Alagic; Chen Bai; Christian Majenz; Kaiyan Shi

track

10 30

Information Theory

Salle Sherbrooke C

Track C

Fundamentals of quantum Boltzmann machine learning with visible and hidden units
Mark Wilde
Geometric optimization for quantum communication
Chengkai Zhu; Hongyu Mao; Kun Fang; Xin Wang
Limits on Quantum Information Processing from Non-Commutative Probability Theory
Ian George; Marco Tomamichel

track

12 00

Closing Statements

logistics

12 30

End of Conference

logistics

Schedule could be subject to change.

Meals

Meal	Included
Morning coffee & pastries (daily, does not constitute a full breakfast)	✔
Coffee breaks (daily)	✔
Lunch — Monday	✗
Lunch — Tuesday	✗
Lunch — Wednesday (Business Meeting)	✔
Lunch — Thursday	✗
Lunch — Friday	✗
Welcome cocktail — Monday (1 drink and appetizers included)	✔
Banquet — Thursday	✔

✔ Included in registration · ✗ Not included

Please note: outside food is not permitted in the public spaces of the hotel, only in your individual rooms.

Registration & Morning Fuel (Coffee & Pastries) (Coffee and snacks included)

Opening Address

Invited Speaker

Coffee Break (Included)

Algorithms

Cryptography

Error Correction

Lunch break (Lunch not included)

Learning

Foundations

Sampling Supremacy

Coffee Break (Included)

Algorithms

Complexity

Simulation of Quantum Circuits

Sponsored Talk

Poster Session & Welcome Cocktail (1 drink and appetizers included)

End of Day

Morning Fuel (Coffee & Pastries) (included)

Invited Speaker

Sponsored Talk

Coffee Break (Included)

Error Correction

Cryptography

Simulations

Lunch break (Lunch not included)

Learning Hamiltonians

Fermionic Computation

Information Theory

Coffee Break (Included)

Interactive Proofs

Circuits

Foundations

Sponsored Talk

Poster Session and Sponsor Exhibition

End of Day

Morning Fuel (Coffee & Pastries) (included)

Invited Speaker

Coffee Break (Included)

Algorithms

Bosonic Computation

Error Correction

Lunch Break and Business Meeting (lunch included)

Excursions (~14h – 18h30)

Board Games

End of Day

Morning Fuel (Coffee & Pastries) (included)

Algorithms

Cryptography

Random Unitaries

Coffee Break (Included)

Learning

Complexity

Information Theory

Lunch break (Lunch not included)

Tensor Networks

Cryptography

Optimization

Coffee Break (Included)

AMA Session

Sponsor Exhibition

Banquet (Included)

End of Day

Hotel Check-out

Morning Fuel (Coffee & Pastries) (included)

Invited Speaker

Coffee Break (Included)

Learning

Cryptography

Information Theory

Closing Statements

End of Conference

Meals