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Showing 2024 · quant-phShow all

52 papers · 2 filters

quant-ph2024★ 2 cited

The Jacobi Factoring Circuit: Quantum Factoring with Near-Linear Gates and Sublinear Space and Depth

Gregory D. Kahanamoku-Meyer, Seyoon Ragavan, Vinod Vaikuntanathan +1

We present a compact quantum circuit for factoring a large class of integers, including some whose classical hardness is expected to be equivalent to RSA (but not including RSA int…

quant-ph2024

Engineering micromotion in Floquet prethermalization via space-time symmetries

Ilyoun Na, Jack Kemp, Sinéad M. Griffin +1

We present a systematic framework for Floquet prethermalization under strong resonant driving, emphasizing the pivotal role of dynamical space-time symmetries. Our approach demonst…

quant-ph2024★ 1 cited

Quantum birthmarks: Ergodicity breaking beyond scarring

Anton M. Graf, Saul Atwood, Mingxuan Xiao +3

A hallmark of classical ergodicity is the complete loss of memory of the initial conditions due to eventual uniform covering of {\it a priori} available phase space. In quantum cou…

quant-ph2024★ 4 cited

Cavity-enabled real-time observation of individual atomic collisions

Matthew L. Peters, Guoqing Wang, David C. Spierings +4

Using the strong dispersive coupling to a high-cooperativity cavity, we demonstrate fast and non-destructive number-resolved detection of atoms in optical tweezers. We observe indi…

quant-ph2024★ 2 cited

On fault tolerant single-shot logical state preparation and robust long-range entanglement

Thiago Bergamaschi, Yunchao Liu

Preparing encoded logical states is the first step in a fault-tolerant quantum computation. Standard approaches based on concatenation or repeated measurement incur a significant t…

quant-ph2024★ 4 cited

Emergent disorder and sub-ballistic dynamics in quantum simulations of the Ising model using Rydberg atom arrays

Ceren B. Dag, Hanzhen Ma, P. Myles Eugenio +2

Rydberg atom arrays with Van der Waals interactions provide a controllable path to simulate the locally connected transverse-field Ising model (TFIM), a prototypical model in stati…

quant-ph2024★ 2 cited

Expressibility, entangling power and quantum average causal effect for causally indefinite circuits

Pedro C. Azado, Guilherme I. Correr, Alexandre Drinko +3

Parameterized quantum circuits are the core of new technologies such as variational quantum algorithms and quantum machine learning, which makes studying its properties a valuable…

quant-ph2024★ 6 cited

Experimentally probing entropy reduction via iterative quantum information transfer

Toshihiro Yada, Pieter-Jan Stas, Aziza Suleymanzade +4

Thermodynamic principles governing energy and information are important tools for a deeper understanding and better control of quantum systems. In this work, we experimentally inve…

quant-ph2024★ 12 cited

Quantum adiabatic optimization with Rydberg arrays: localization phenomena and encoding strategies

Lisa Bombieri, Zhongda Zeng, Roberto Tricarico +5

Quantum adiabatic optimization seeks to solve combinatorial problems using quantum dynamics, requiring the Hamiltonian of the system to align with the problem of interest. However,…

quant-ph2024★ 6 cited

Protocols for Creating Anyons and Defects via Gauging

Anasuya Lyons, Chiu Fan Bowen Lo, Nathanan Tantivasadakarn +2

Creating and manipulating anyons and symmetry defects in topological phases, especially those with a non-Abelian character, constitutes a primitive for topological quantum computat…

quant-ph2024★ 3 cited

Learning quantum states prepared by shallow circuits in polynomial time

Zeph Landau, Yunchao Liu

We give a polynomial time algorithm that, given copies of an unknown quantum state that is prepared by an unknown constant depth circuit on a…

quant-ph2024★ 31 cited

Observation of string breaking on a (2 + 1)D Rydberg quantum simulator

Daniel Gonzalez-Cuadra, Majd Hamdan, Torsten V. Zache +10

Lattice gauge theories (LGTs) describe a broad range of phenomena in condensed matter and particle physics. A prominent example is confinement, responsible for bounding quarks insi…

quant-ph2024

More global randomness from less-random local gates

Ryotaro Suzuki, Hosho Katsura, Yosuke Mitsuhashi +3

Random circuits giving rise to unitary designs are key tools in quantum information science and many-body physics. In this work, we investigate a class of random quantum circuits w…

quant-ph2024★ 12 cited

Deterministic generation of photonic entangled states using decoherence-free subspaces

Oriol Rubies-Bigorda, Stuart J. Masson, Susanne F. Yelin +1

We propose the use of collective states of matter as a resource for the deterministic generation of quantum states of light, which are fundamental for quantum information technolog…

quant-ph2024★ 11 cited

Stability and Loop Models from Decohering Non-Abelian Topological Order

Pablo Sala, Ruben Verresen

Decohering topological order (TO) is central to the many-body physics of open quantum matter and decoding transitions. We identify relevant statistical mechanical models for decohe…

quant-ph2024★ 2 cited

Faster Algorithmic Quantum and Classical Simulations by Corrected Product Formulas

Mohsen Bagherimehrab, Luis Mantilla Calderon, Dominic W. Berry +6

Hamiltonian simulation using product formulas is arguably the most straightforward and practical approach for algorithmic simulation of a quantum system's dynamics on a quantum com…

quant-ph2024★ 6 cited

Symmetry based efficient simulation of dissipative quantum many-body dynamics in subwavelength quantum emitter arrays

Raphael Holzinger, Oriol Rubies-Bigorda, Susanne F. Yelin +1

We propose an efficient method to numerically simulate the dissipative dynamics of large numbers of quantum emitters in ordered arrays in the presence of long-range dipole-dipole i…

quant-ph2024★ 1 cited

Minimum Synthesis Cost of CNOT Circuits

Alan Bu, Evan Fan, Robert Sanghyeon Joo

Optimizing the size and depth of CNOT circuits is an active area of research in quantum computing and is particularly relevant for circuits synthesized from the Clifford + T univer…

quant-ph2024★ 3 cited

Motional sideband asymmetry of a solid-state mechanical resonator at room temperature

Yi Xia, Guanhao Huang, Alberto Beccari +4

The motional sideband asymmetry of a mechanical oscillator interacting with a laser field can be observed when approaching the quantum ground state, where the zero-point energy of…

quant-ph2024★ 1 cited

On the Hardness of Measuring Magic

Roy J. Garcia, Gaurav Bhole, Kaifeng Bu +3

Quantum computers promise to solve computational problems significantly faster than classical computers. These 'speed-ups' are achieved by utilizing a resource known as magic. Meas…

quant-ph2024★ 10 cited

Quantum-machine-assisted Drug Discovery

Yidong Zhou, Jintai Chen, Jinglei Cheng +8

Drug discovery is lengthy and expensive, with traditional computer-aided design facing limits. This paper examines integrating quantum computing across the drug development cycle t…

quant-ph2024★ 8 cited

Characterization of randomness in quantum circuits of continuous gate sets

Yosuke Mitsuhashi, Ryotaro Suzuki, Tomohiro Soejima +1

In the accompanying paper of arXiv:2408.13472, we have established the method of characterizing the maximal order of asymptotic unitary designs generated by symmetric local random…

quant-ph2024★ 9 cited

Unitary Designs of Symmetric Local Random Circuits

Yosuke Mitsuhashi, Ryotaro Suzuki, Tomohiro Soejima +1

We have established the method of characterizing the unitary design generated by a symmetric local random circuit. Concretely, we have shown that the necessary and sufficient condi…

quant-ph2024★ 12 cited

Genuine quantum scars in many-body spin systems

Andrea Pizzi, Long-Hei Kwan, Bertrand Evrard +2

Chaos makes isolated systems of many interacting particles quickly thermalize and forget about their past. Here, we show that quantum mechanics hinders chaos in many-body systems:…