Papers

Joseph Cunningham, Jérémie Roland·Jun 6, 2024

We present a framework for quantum computation, similar to Adiabatic Quantum Computation (AQC), that is based on the quantum Zeno effect. By performing randomised dephasing operations at intervals determined by a Poisson process, we are able to track...

Yu-Hong Liu, Yexiong Zeng, Qing-Shou Tan +3 more·Jun 6, 2024

Efficiently controlling linear Gaussian quantum (LGQ) systems is a significant task in both the study of fundamental quantum theory and the development of modern quantum technology. Here, we propose a general quantum-learning-control method for optim...

Asad Raza, Matthias C. Caro, J. Eisert +1 more·Jun 6, 2024

Among recent insights into learning quantum states, online learning and shadow tomography procedures are notable for their ability to accurately predict expectation values even of adaptively chosen observables. In contrast to the state case, quantum ...

Vishesh Jain, Matthew Kwan, Marcus Michelen·Jun 5, 2024

Consider a bipartite quantum system, where Alice and Bob jointly possess a pure state $|ψ\rangle$. Using local quantum operations on their respective subsystems, and unlimited classical communication, Alice and Bob may be able to transform $|ψ\rangle...

Koichi Yanagisawa, Tsuyoshi Okubo, Shota Koshikawa +3 more·Jun 5, 2024

Matrix Product States (MPS) provide a powerful framework for simulating quantum circuits. In practical simulations, tensor updates are typically performed in the canonical form (CF), which corresponds to the Schmidt decomposition and improves approxi...

Alexander V. Balatsky, P. Roushan, J. Schaltegger +1 more·Jun 5, 2024

We investigate the interaction of a transmon qubit with a classical gravitational field. Exploiting the generic phenomena of the gravitational redshift and Aharonov-Bohm phase, we show that entangled quantum states dephase with a universal rate. The ...

J. Michniewicz, M. Kim·Jun 5, 2024

There is a growing demand for quantum computing across various sectors, including finance, materials, and studying chemical reactions. A promising implementation involves semiconductor qubits utilizing quantum dots within transistors. While academic ...

R. A. Shaikh, Lia Yeh, S. Gogioso·Jun 5, 2024

While the ZX and ZW calculi have been effective as graphical reasoning tools for finite-dimensional quantum computation, the possibilities for continuous-variable quantum computation (CVQC) in infinite-dimensional Hilbert space are only beginning to ...

Kaito Wada, Naoki Yamamoto, Nobuyuki Yoshioka·Jun 5, 2024

In quantum mechanics, measuring the expectation value of a general observable has an inherent statistical uncertainty that is quantified by variance or mean squared error of measurement outcome. While the uncertainty can be reduced by averaging sever...

Hayun Park, Hunpyo Lee·Jun 5, 2024

The qubits in a D-wave quantum annealer (D-wave QA) are designed on a Pegasus graph that is different from the structure of a combinatorial optimization problem. This situation requires embedding with the chains connected by ferromagnetic coupling Jc...

S. Caíno-Lores, Daniel Claudino, Eugene Dumitrescu +3 more·Jun 5, 2024

Programming for today's quantum computers is making significant strides toward modern workflows compatible with high performance computing (HPC), but fundamental challenges still remain in the integration of these vastly different technologies. Quant...

Marco Lewis, Paolo Zuliani, Sadegh Soudjani·Jun 5, 2024

We present SilVer (Silq Verification), an automated tool for verifying behaviors of quantum programs written in Silq, which is a high-level programming language for quantum computing. The goal of the verification is to ensure correctness of the Silq ...

Zhen Guo, Li You·Jun 5, 2024

Counting ground state degeneracy of a k-local Hamiltonian is important in many fields of physics. Its complexity class is harder than that of finding the ground state of a k-local Hamiltonian. Very few methods can efficiently count the degeneracy of ...

Hayun Park, Hunpyo Lee·Jun 5, 2024

We developed a quantum eigensolver (QE) which is based on an extension of optimized binary configurations measured by quantum annealing (QA) on a D-Wave Quantum Annealer (D-Wave QA). This approach performs iterative QA measurements to optimize the ei...

Guo-Dong Li, Haibin He, Yue Li +4 more·Jun 5, 2024

As an emerging technology force, quantum algorithms have shown great potential and unique advantages in many fields of application. Power quality disturbances (PQDs) affect the security and stability of the power system, which may lead to equipment d...

Reinis Irmejs, R. A. Santos·Jun 5, 2024

One of the most important quantities characterizing the microscopic properties of quantum systems are dynamical correlation functions. These correlations are obtained by time-evolving a perturbation of an eigenstate of the system, typically the groun...

Dichuan Gao·Jun 4, 2024

We propose a generalization of the graphical ZH calculus to qudits of prime-power dimensions $q = p^t$, implementing field arithmetic in arbitrary finite fields. This is an extension of a previous result by Roy which implemented arithmetic of prime-s...

S. Grieninger, Ismail Zahed·Jun 4, 2024

We introduce the concept of the quark quasifragmentation function (qFF) using an equal-time and spatially boosted form of the Collins-Soper fragmentation function where the out-meson fragment is replaced by the current asymptotic condition. We derive...

Mani L. Bhaumik·Jun 4, 2024

The enormous success of the Standard Model of particle physics has clearly established quantum fields as the fundamental elements of reality of the universe unveiled to us so far. Here we present for the first time a thorough derivation of the wavefu...

V. Sivak, M. Newman, P. Klimov·Jun 4, 2024

Accurate decoding of quantum error-correcting codes is a crucial ingredient in protecting quantum information from decoherence. It requires characterizing the error channels corrupting the logical quantum state and providing this information as a pri...