ELFT HÍRADÓ

[Kormos Márton <kormos.marton AT ttk.bme.hu>]

MEGHÍVÓ

BME Elméleti Fizika Szeminárium,

máj. 8. péntek 10h15,

1111 Budapest, Budafoki út 8., BME F III. magasföldszint 01.,
Elméleti Fizika Tanszék szemináriumi szoba

Portik Attila (HUN-REN Wigner Fizikai Kutatóközpont)
Clifford Volume and Free Fermion Volume: Complementary Scalable Benchmarks 
for Quantum Computers

As quantum computing advances toward the late-NISQ and early fault-tolerant 
eras, scalable and platform-independent benchmarks are essential for 
quantifying computational capacity in a classically verifiable manner. We 
introduce two volumetric benchmarks, Clifford Volume and Free Fermion Volume, 
that assess quantum hardware by testing the execution of random Clifford and 
free fermion operations. These two groups of unitaries possess a combination 
of properties that make them ideal for benchmarking: (i) each is individually 
efficient to simulate classically, enabling verification at scale; (ii) 
together they form a universal gate set; (iii) they serve as essential 
algorithmic primitives in practical applications (including shadow tomography 
and quantum chemistry); and (iv) their definitions are formulated abstractly, 
without explicit reference to hardware-specific features such as qubit 
connectivity or native gate sets. This framework thus enables scalable and 
fair cross-platform comparisons and tracks meaningful computational 
advancement. In our work, we demonstrate the practical feasibility of these 
benchmarks through extensive numerical simulations across realistic noise 
parameters and through experimental validation on Quantinuum's H2-1 
trapped-ion quantum computer, which achieves a Clifford Volume of 34. In this 
talk, I will present the proposed benchmarking framework, along with the 
software stack developed for its platform-independent implementation. I will 
also share experimental results obtained on Quantinuum devices and discuss 
preliminary results from other current quantum computing platforms.

Minden érdeklődőt szeretettel várunk.

A további program megtekinthető itt: https://physics.ttk.bme.hu/theoryseminars

Kormos Márton,
szemináriumi koordinátor