paper / manuelendres / 12d ago
Shor's algorithm, crucial for cryptography, traditionally demands millions of physical qubits due to error correction overhead. However, new advancements in quantum error correction, logical instruction sets, and circuit design enable Shor's algorithm to be executed with as few as 10,000 reconfigurable atomic qubits. This reduction in qubit count makes cryptographically relevant quantum computation more feasible, with potential runtimes of a few days for P-256 elliptic curve discrete logarithms using 26,000 qubits.
quantum-computingshors-algorithmerror-correctionneutral-atom-qubitscryptography
“Shor's algorithm can be executed at cryptographically relevant scales with as few as 10,000 reconfigurable atomic qubits.”
paper / manuelendres / 19d ago
This work introduces an ancilla-based toolbox to address key hardware limitations in neutral atom quantum computing, specifically atom loss and heating. By leveraging Rydberg entangling gates and ancilla atoms, the authors demonstrate improved readout fidelity, coherence-preserving mid-circuit loss detection, and significant algorithmic cooling of data atoms. These advancements aim to enable more robust and continuous operation in optical tweezer experiments.
quantum-computingneutral-atomsrydberg-gatesquantum-error-correctionquantum-sensingatomic-physics
“The proposed ancilla-based toolbox mitigates atom loss and heating in optical tweezer experiments.”
paper / manuelendres / Jan 22
This work presents the first direct experimental observation of energy excitation spectra in emergent Conformal Field Theories (CFTs) at quantum phase transitions. The researchers developed and implemented a modulation technique to resolve the finite-size spectra of a Rydberg chain, which was tuned to quantum phase transitions described by Ising or tricritical Ising CFTs. This method allowed for the recovery of universal energy ratios characteristic of the underlying field theories, and provides a technique for diagnosing unknown universality classes in future experiments, advancing the understanding of CFT features in quantum simulators.
conformal-field-theoryquantum-physicsquantum-simulationrydberg-atomsphase-transitions
“The energy excitation spectra of emergent CFTs at quantum phase transitions can be directly observed experimentally.”
paper / manuelendres / Oct 13
Quantum simulations of high-energy gauge theory dynamics, specifically the (1+1)D Schwinger model, reveal surprising non-thermalizing behavior. Despite initial expectations of rapid thermalization for a system initialized with particle-antiparticle pairs, experiments show ballistic plasma formation and long-time memory effects. This necessitates a new theoretical framework involving plasma oscillations between electric field and current operators, departing from explanations like many-body scars.
quantum-simulationgauge-theoryhigh-energy-physicsplasma-physicsquantum-opticstheoretical-physics
“High-energy gauge theory dynamics can exhibit ballistic plasma formation and long-time memory effects.”
paper / manuelendres / Oct 9
Researchers have developed a three-dimensional acousto-optic deflector (AOD) by integrating a double-pass AOD with a diffraction grating in a Littrow configuration. This architecture creates a frequency-tunable lens capable of high-speed (100 kHz) axial and lateral beam steering and multiplexed multi-focal profile generation. The system effectively bridges the gap in rapid 3D beam shaping for applications in quantum technologies and high-resolution microscopy.
acousto-optic-deflectors3d-beam-shapingoptical-engineeringmicroscopylaser-processingquantum-technologies
“The system enables axial scanning over more than twenty Rayleigh ranges.”