Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
A Survey of Methods for Mitigating Barren Plateaus for Parameterized Quantum Circuits
Michelle Gelman·Jun 20, 2024
Barren Plateaus are a formidable challenge for hybrid quantum-classical algorithms that lead to flat plateaus in the loss function landscape making it difficult to take advantage of the expressive power of parameterized quantum circuits with gradient...
Bayesian Optimization Priors for Efficient Variational Quantum Algorithms
Farshud Sorourifar, Diana Chamaki, N. Tubman +2 more·Jun 20, 2024
Quantum computers currently rely on a hybrid quantum-classical approach known as Variational Quantum Algorithms (VQAs) to solve problems. Still, there are several challenges with VQAs on the classical computing side: it corresponds to a black-box opt...
Quantum extreme learning of molecular potential energy surfaces and force fields
Gabriele Lo Monaco, Marco Bertini, Salvatore Lorenzo +1 more·Jun 20, 2024
Quantum machine learning algorithms are expected to play a pivotal role in quantum chemistry simulations in the immediate future. One such key application is the training of a quantum neural network to learn the potential energy surface and force fie...
Gate Teleportation in Noisy Quantum Networks with the SquidASM Simulator
Valter Uotila·Jun 19, 2024
We implement the gate teleportation algorithm for teleporting arbitrary two-qubit Clifford gates and the Toffoli gate within the context of multi-node quantum networks, utilizing the SquidASM quantum network simulator. We show how a gate teleportatio...
Solving k–SAT problems with generalized quantum measurement
Yipei Zhang, Philippe Lewalle, K. B. Whaley·Jun 19, 2024
We generalize the projection–based quantum measurement–driven k–SAT algorithm of Benjamin, Zhao, and Fitzsimons1 to arbitrary strength quantum measurements, including the limit of continuous monitoring. In doing so, we clarify that this algorithm is ...
Suppressing photon detection errors in nondeterministic state preparation
Csaba Czab'an, Zoltán Kolarovszki, Márton Karácsony +1 more·Jun 19, 2024
Photonic quantum computing has recently emerged as a promising candidate for fault-tolerant quantum computing by photonic qubits. These protocols make use of nondeterministic gates, enabling universal quantum computation. However, the suggested solut...
A Catalyst Framework for the Quantum Linear System Problem via the Proximal Point Algorithm
J. Kim, Nai-Hui Chia, Anastasios Kyrillidis·Jun 19, 2024
Solving systems of linear equations is a fundamental problem, but it can be computationally intensive for classical algorithms in high dimensions. Existing quantum algorithms can achieve exponential speedups for the quantum linear system problem (QLS...
Efficient Implementation of a Quantum Search Algorithm for Arbitrary N
Alok Shukla, P. Vedula·Jun 19, 2024
This paper presents an enhancement to Grover's search algorithm for instances where the number of items (or the size of the search problem) $N$ is not a power of 2. By employing an efficient algorithm for the preparation of uniform quantum superposit...
Amplitude amplification and estimation using the atom-optics kicked rotor
K. V, M. S. Santhanam·Jun 19, 2024
The quantum kicked rotor (QKR) is a fundamental model of time-dependent quantum chaos and the physics of Anderson localization. It is one of the most well-studied Floquet systems. In this work, it is shown that QKR can be used to implement a quantum ...
Cyber Protection Applications of Quantum Computing: A Review
Ummar Ahmed, T. Sipola, Jari Hautamäki·Jun 19, 2024
Quantum computing is a cutting-edge field of information technology that harnesses the principles of quantum mechanics to perform computations. It has major implications for the cyber security industry. Existing cyber protection applications are work...
Stabilizing the Kerr arbitrary cat states and holonomic universal control
Ke-hui Yu, Fan Zhu, Jiao-Jiao Xue +1 more·Jun 19, 2024
The interference-free double potential wells realized by the two-photon driving Kerr nonlinear resonator (KNR) can stabilize cat states and protect them from decoherence through a large energy gap. In this work, we use a parametrically driving KNR to...
Applications of Post-quantum Cryptography
Emils Bagirovs, Grigory Provodin, T. Sipola +1 more·Jun 19, 2024
With the constantly advancing capabilities of quantum computers, conventional cryptographic systems relying on complex math problems may encounter unforeseen vulnerabilities. Unlike regular computers, which are often deemed cost-ineffective in crypto...
Polynomially restricted operator growth in dynamically integrable models
I. Ermakov, Tim Byrnes, Oleg Lychkovskiy·Jun 18, 2024
We provide a framework to determine the upper bound to the complexity of a computing a given observable with respect to a Hamiltonian. By considering the Heisenberg evolution of the observable, we show that each Hamiltonian defines an equivalence rel...
Simulating nonlinear optical processes on a superconducting quantum device
Yuan Shi, B. Evert, Amy F. Brown +8 more·Jun 18, 2024
Simulating plasma physics on quantum computers is difficult because most problems of interest are nonlinear, but quantum computers are not naturally suitable for nonlinear operations. In weakly nonlinear regimes, plasma problems can be modelled as wa...
Transversal cnot gate with multicycle error correction
Younghun Kim, M. Sevior, Muhammad Usman·Jun 18, 2024
A scalable and programmable quantum computer holds the potential to solve computationally intensive tasks that classical computers cannot accomplish within a reasonable time frame, achieving quantum advantage. However, the vulnerability of the curren...
Hybrid Atom Tweezer Array of Nuclear Spin and Optical Clock Qubits
Y. Nakamura, Toshi Kusano, Rei Yokoyama +6 more·Jun 18, 2024
While data qubits with a long coherence time are essential for the storage of quantum information, ancilla qubits are pivotal in quantum error correction (QEC) for fault-tolerant quantum computing. The recent development of optical tweezer arrays, su...
New Reservoir Computing Kernel Based on Chaotic Chua Circuit and Investigating Application to Post-Quantum Cryptography
Matthew John Cossins, Sendy Phang·Jun 18, 2024
The aim of this project was to develop a new Reservoir Computer implementation, based on a chaotic Chua circuit. In addition to suitable classification and regression benchmarks, the Reservoir Computer was applied to Post-Quantum Cryptography, with i...
Hybrid Quantum-Classical Algorithms
Roberto Campos·Jun 18, 2024
This thesis explores hybrid algorithms that combine classical and quantum computing to enhance the performance of classical algorithms. Two approaches are studied: a hybrid search and sample optimization algorithm and a classical algorithm that asses...
A quantum algorithm to simulate Lindblad master equations
E. Borras, M. Marvian·Jun 18, 2024
We present a quantum algorithm for simulating a family of Markovian master equations that can be realized through a probabilistic application of unitary channels and state preparation. Our approach employs a second-order product formula for the Lindb...
Simulating spin biology using a digital quantum computer: Prospects on a near-term quantum hardware emulator
Pedro Alvarez, Farhan Tanvir Chowdhury, Luke D. Smith +4 more·Jun 18, 2024
Understanding the intricate quantum spin dynamics of radical pair reactions is crucial for unraveling the underlying nature of chemical processes across diverse scientific domains. In this work, we leverage Trotterization to map coherent radical pair...