Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Quantum Key Distribution by Quantum Energy Teleportation
Shlomi Dolev, Kazuki Ikeda, Yaron Oz·Jun 1, 2025
Quantum energy teleportation (QET) is a process that leverages quantum entanglement and local operations to transfer energy between two spatially separated locations without physically transporting particles or energy carriers. We construct a QET-bas...
Quantum-Classical Embedding via Ghost Gutzwiller Approximation for Enhanced Simulations of Correlated Electron Systems
I. Chen, Aleksei Khindanov, C. Salazar +6 more·Jun 1, 2025
Simulating correlated materials on present-day quantum hardware remains challenging due to limited quantum resources. Quantum embedding methods offer a promising route by reducing computational complexity through the mapping of bulk systems onto effe...
Quantum photonics on a chip
Aviad Katiyi, Alina Karabchevsky School of Electrical, Computer Engineering +6 more·Jun 1, 2025
Optical chips for quantum photonics are cutting-edge technology, merging photonics and quantum mechanics to manipulate light at the quantum level. These chips are crucial for advancing quantum computing, secure communication, and precision sensing by...
Bridging Quantum and Classical Computing in Drug Design: Architecture Principles for Improved Molecule Generation
Andrew K Smith, Erhan Guven·Jun 1, 2025
Hybrid quantum-classical machine learning offers a path to leverage noisy intermediate-scale quantum (NISQ) devices for drug discovery, but optimal model architectures remain unclear. We systematically optimize the quantum-classical bridge architectu...
Coherent error induced phase transition
Hanchen Liu, Xiao Chen·May 31, 2025
We investigate the stability of logical information in quantum stabilizer codes subject to coherent unitary errors. Beginning with a logical state, we apply a random unitary error channel and subsequently measure stabilizer checks, resulting in a syn...
Quantum Skip Gates: Coherently Conditioned Subroutines in Iterative Quantum Algorithms
Kym Derriman·May 31, 2025
The Quantum Skip Gate (QSG) is a unitary circuit primitive that coherently superposes the execution and omission of an expensive quantum subroutine based on the outcome of a cheaper preceding subroutine, without mid-circuit measurement or loss of coh...
On Quantum Entanglement and Nonlocality
Mafiz Uddin·May 31, 2025
EPR showed that two particles emitted from a source can be entangled by a shared wavefunction where two non-commuting observables (position, momentum) can be simultaneously real, leading to a contradiction with quantum mechanics (two non-commuting va...
Statistical Signal Processing for Quantum Error Mitigation
Kausthubh Chandramouli, K. Allen, Christopher Mori +2 more·May 31, 2025
In the noisy intermediate-scale quantum (NISQ) era, quantum error mitigation (QEM) is essential for producing reliable outputs from quantum circuits. We present a statistical signal processing approach to QEM that estimates the most likely noiseless ...
Exponential speedup in quantum simulation of Kogut-Susskind Hamiltonian via orbifold lattice
Georg Bergner, Masanori Hanada·May 31, 2025
We demonstrate that the orbifold lattice Hamiltonian -- an approach known for its efficiency in simulating SU($N$) Yang-Mills theory and QCD on digital quantum computers -- can reproduce the Kogut-Susskind Hamiltonian in a controlled limit. While the...
Minimising the number of edges in LC-equivalent graph states
Hemant Sharma, Kenneth Goodenough, Johannes Borregaard +2 more·May 30, 2025
Graph states are a powerful class of entangled states with numerous applications in quantum communication and quantum computation. Local Clifford (LC) operations that map one graph state to another can alter the structure of the corresponding graphs,...
Demonstration of a reconfigurable quantum network architecture suitable for ground-to-space communication
Stéphane Vinet, Duncan England, Chang-qing Xu +1 more·May 30, 2025
We experimentally demonstrate a reconfigurable quantum network architecture suitable for integrating satellite links in metropolitan quantum networks. The network architecture is designed such that once a satellite is in range, it is configured in a ...
Detecting genuine multipartite entanglement using moments of positive maps
Saheli Mukherjee, Bivas Mallick, Sahil Gopalkrishna Naik +2 more·May 30, 2025
Genuine multipartite entanglement (GME) represents the strongest form of entanglement in multipartite systems, providing significant advantages in various quantum information processing tasks. In this work, we propose an experimentally feasible schem...
Realistic quantum network simulation for experimental BBM92 key distribution
Michelle Chalupnik, Brian Doolittle, Suparna Seshadri +8 more·May 30, 2025
Quantum key distribution (QKD) can provide secure key material between two parties without relying on assumptions about the computational power of an eavesdropper. QKD is performed over quantum links and quantum networks, systems which are resource-i...
Entanglement Detection with Variational Quantum Interference: Theory and Experiment
Rui Zhang, Zhenhuan Liu, Chendi Yang +7 more·May 30, 2025
Entanglement detection is a fundamental task in quantum information science, serving as a cornerstone for quantum benchmarking and foundational studies. With an increasing qubit number that can be effectively controlled, there is a pressing need for ...
Precision bounds for bosonic quantum batteries
Beatriz Polo, Federico Centrone·May 30, 2025
We study precision charging in bosonic quantum batteries under a finite-energy constraint, using the signal-to-noise ratio (SNR) of delivered excitations as an operational metric directly tied to the energy measured at a load. At the state level, we ...
Ergotropic characterization of continuous variable entanglement
Beatriz Polo-Rodríguez, Federico Centrone, Gerardo Adesso +1 more·May 30, 2025
Continuous-variable quantum thermodynamics in the Gaussian regime provides a promising framework for investigating the energetic role of quantum correlations, particularly in optical systems. In this work, we introduce an entropy-free criterion for e...
From top quarks to enhanced quantum key distribution: A Framework for Optimal Predictability of Quantum Observables
Dennis I. Martínez-Moreno, Miguel Castillo-Celeita, Diego G. Bussandri·May 30, 2025
Predicting the outcomes of quantum measurements is a cornerstone of quantum information theory and a key resource for quantum technologies. Here, we introduce a comprehensive framework for quantifying the predictability of measurements on a bipartite...
Spin vs. position conjugation in quantum simulations with atoms: application to quantum chemistry
N. A. Moroz, K. S. Tikhonov, L. V. Gerasimov +4 more·May 30, 2025
The permutation symmetry is a fundamental attribute of the collective wavefunction of indistinguishable particles. It makes a difference for the behavior of collective systems having different quantum statistics but existing in the same environment. ...
Variational-Adiabatic Quantum Solver for Systems of Linear Equations with Warm Starts
Claudio Sanavio, Fabio Mascherpa, Alessia Marruzzo +2 more·May 30, 2025
We propose a revisited variational quantum solver for linear systems, designed to circumvent the barren plateau phenomenon by combining two key techniques: adiabatic evolution and warm starts. To this end, we define an initial Hamiltonian with a know...
Fermionic Magic Resources of Quantum Many-Body Systems
P. Sierant, Paolo Stornati, X. Turkeshi·May 30, 2025
Understanding the computational complexity of quantum states is a central challenge in quantum many-body physics. In qubit systems, fermionic Gaussian states can be efficiently simulated on classical computers and hence can be employed as a natural b...