Papers

Raffaele D'Avino, Ignacio Perito, Piotr Mironowicz +2 more·Jun 19, 2026

We investigate device-independent certification of global randomness based on Bell inequality violations in bipartite scenarios with three outcomes per party. Our goal is to determine whether multi-outcome measurements allow one to surpass the amount...

Máté Farkas, Piotr Mironowicz, Remigiusz Augusiak·Jun 19, 2026

Device-independent random number generation (DIQRNG) is the most secure form of generating private randomness using quantum physical processes. Its strength lies in producing numbers that are impossible to predict by any eavesdropper restricted by th...

Ignacio Perito, Raffaele D'Avino, Michał Jung +3 more·Jun 19, 2026

We present two novel families of bipartite Bell inequalities designed to achieve optimal global randomness certification for an arbitrary number of outputs $d$. We first use symmetry arguments to argue that their maximal quantum violations certify $2...

Kirthik Rajakumar, Ansh Das, Abhinay Pandey +1 more·Jun 19, 2026

We propose and characterize a protocol for rapid near-ground state cooling of the center-of-mass (c.m.) mode of a large trapped ion crystal. When the initial mean thermal occupation of the mode $\bar{n}_i$ is small compared to the number of ions $N$,...

Kun Wang, Masahito Hayashi·Jun 19, 2026

We develop a framework for quantum measurement verification (QMV) using only local state preparations. For locally transitive and irreducible projective measurements, we prove that symmetry reduces locality constrained QMV to quantum state verificati...

James Byrne, Noah Linden, Paul Skrzypczyk·Jun 19, 2026

We show that adaptivity, also called feed-forward, is a powerful resource in reducing the error of measurement circuits that combine multiple uses of a noisy measuring device. In previous work, it has been shown that error in measurements can be miti...

Mahadeva Chanda Durjoy, Girish S. Agarwal·Jun 18, 2026

In recent times there has been growing interest in Raman optical activity (ROA) for its label free detection of absolute configuration, conformation, and stereochemical structure in chiral biosamples and drug molecules. Since ROA signals are generall...

Jason Necaise, Namit Anand, Gaurav Gyawali +3 more·Jun 18, 2026

Efficient simulation of strongly-interacting fermionic systems on quantum processing units (QPUs) is a challenging task due to nonlocal mode entanglement generation. However, it is not yet well understood how the structure of entanglement governs the...

Paulo F. Bedaque, Hersh Kumar, Suryansh Rajawat +1 more·Jun 18, 2026

We present a variational approach to quantum field theory based on wavefunctions parameterized by neural networks. While variational methods have a celebrated history across many fields, their application to quantum field theory has been limited by w...

Pawel Caputa, Giuseppe Di Giulio, Tran Quang Loc·Jun 18, 2026

Motivated by the role of the holographic entropy cone in constraining the entanglement structure of states with classical gravitational duals, we investigate combinations of subsystem complexities associated with reduced density matrices in multipart...

Daniel Molpeceres, Sirui Lu, J. Ignacio Cirac +1 more·Jun 18, 2026

We compare the performance of representative cooling, adiabatic, and optimization algorithms for ground-state preparation in the presence of noise. Using an exactly solvable family of quadratic fermionic Hamiltonians subject to depolarizing noise, we...

Chong-Yuan Xu, Ze-Chuan Liu, Yong Xu·Jun 18, 2026

Topological codes, including the toric code, are among the most important classes of stabilizer codes. Existing constructions and analyses of such codes, however, overwhelmingly assume translation invariance. Here we introduce a framework for constru...

Itai Arad, Zhili Chen, Naixu Guo +2 more·Jun 18, 2026

We study the problem of learning local Lindbladians from black-box access to the physical evolution, where the goal is to estimate all Hamiltonian and dissipative coefficients. For local Lindbladians with low-intersection dissipators and local dynami...

Qi Yang·Jun 18, 2026

Variational infinite matrix product state (iMPS) calculations usually make Hamiltonians with algebraically decaying interactions compatible with standard MPO algorithms by first replacing the target Hamiltonian with a finite-pole sum-of-exponentials ...

Emanuel-Cristian Boghiu, Kyrylo Simonov·Jun 18, 2026

The process matrix formalism describes quantum correlations in scenarios without a fixed causal order between local laboratories. Operational signatures of such correlations can be investigated through causal games. A paradigmatic example is the Gues...

Anthony Leverrier, Rüdiger Urbanke·Jun 18, 2026

We introduce the Frontier decoder, a pruned dynamic-programming decoder for sparse quantum decoding problems. Frontier processes error variables in a chosen order, merges prefixes with the same residual syndrome and logical label, and approximates lo...

Chris Whitty, Aitor Alaña, Michele Modugno +4 more·Jun 18, 2026

We consider protocols for control of dipolar Bose-Einstein condensates where the critical role is played by the long-range anisotropic interatomic magnetic dipole-dipole interaction. The phase diagram of such a condensate has been explored theoretica...

Sai Sakunthala Guddanti, Anil Prabhakar, Ria Rushin Joseph·Jun 18, 2026

We present a systematic study of von Neumann entropy estimation in multi-qutrit quantum systems using two complementary approaches: variational quantum algorithms (VQAs) and classical convolutional neural networks (CNNs), evaluated using an ideal (no...

Neven Gentil, Lous S. Rianne, Aida Todri-Sanial·Jun 18, 2026

Neutral atom quantum computers (NAQC) are emerging as a promising, scalable quantum computing platform because of their long qubit coherence, flexible qubit arrangement, and multiqubit gate capabilities. However, circuit execution often requires phys...

Simon Pettersson Fors, Aniket Patel, Anton Frisk Kockum +1 more·Jun 18, 2026

As quantum-computing platforms are susceptible to noise, the fidelity of quantum operations is limited by decoherence. Understanding this limitation is crucial for building utility-scale quantum processors. In previous works [Phys. Rev. Lett. 129, 15...