News Radar
Announcements and papers from vendors, labs and journals - deduplicated across outlets, with every source linked. Ordered by editorial significance, not by press-release volume.
Sharp State-Independent Uncertainty Relations for Multipartite systems
Understanding the constraints on the fluctuations of incompatible observables in quantum systems is crucial for advancements in quantum computing and quantum information...
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Research
On the Four-Loop Higgs-Gluon Form Factor in Nonlocal Quantum Field Theory
Understanding gluon-fusion Higgs production is essential for particle physics, as it plays a crucial role in fundamental theories.
Research
Fast Algorithms for Stoquastic Spin Systems
We establish a general framework for developing fast sampling and counting algorithms for stoquastic spin systems at high temperature.
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Efficient Classical Simulation of Weakly Interacting Fermion Dynamics
We consider the task of simulating the real-time dynamics of weakly interacting fermionic systems.
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Rescaled Mandelstam Tamm characterization of discrete time crystal response in a disordered Floquet Ising chain
For pure state unitary dynamics, the Mandelstam Tamm (MT) lower-bound functional compares the endpoint Fubini Study return angle with path...
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State convertibility and fluctuation theorems from a dynamical reference: majorization meets martingales
State convertibility represents a fundamental concept used to determine whether a transformation is possible given a specific set of...
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Self-calibrating thermal interferometry of vortex parity in a two-dimensional chiral superconductor
A chiral superconductor carries chiral Majorana modes along its boundary, and the integer that counts them fixes everything that follows...
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AWS and JPMorganChase collaborate to advance quantum computing R&D
This post was contributed by Martin Schuetz and Ruben Andrist from the Amazon Advanced Solutions Lab, and Romina Yalovetzky and Atithi...
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Interferometric Signatures of Zero Modes in Fractional Quantum Hall-Superconductor Heterostructures
Fractional quantum Hall-superconductor (FQH-SC) heterostructures are predicted to host defect-bound parafermion zero modes (PZMs).
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Holographic Local Operator Quenches with Conserved Momentum and Spin
We investigate the holographic dictionary relating point particles carrying longitudinal momentum or angular momentum in asymptotically...
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Proof of the hiding conjecture for Gaussian boson sampling with an arbitrary number of squeezed input modes
Gaussian boson sampling (GBS) is a sampling task proposed to demonstrate quantum advantage.
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Quantum Gaussian processes for prediction of channel observations
Given a set of input states, we consider the task of predicting the expectation value of a Pauli observable at the output of an unknown...
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Dissipation-enhanced scrambling in the SYK model coupled to a lossy cavity
We study the Yukawa-Sachdev-Ye-Kitaev model, a disordered model of $N$ Majorana fermions and $R=γN$ bosons in which the bosons are linearly...
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Electrostriction in a Bose-Einstein Condensate of Dipolar Molecules
The recent creation of a Bose-Einstein condensate (BEC) of dipolar molecules has opened a new frontier for many-body quantum systems in...
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Quantum Speedups Require Structure or Depth
One of the most basic conjectures in quantum complexity theory states that every $t$-query quantum algorithm can be simulated on most...
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Entanglement battery and entanglement catalyst in local state discrimination problems
In this work, we study the limitations and advantages of using entanglement battery and entanglement catalyst in local state discrimination...
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Connectivity--Interference Competition in Coherent Transport on Percolated Hierarchical Small-World Networks
Adding links generally improves classical transport by increasing the number of available paths.