Researchers derive algebraic properties of generalized Bell bases via basis group/theorem and provide topological descriptions of multi-qubit quantum teleportation using Temperley–Lieb algebra, braid group, and Yang–Baxter equations.
#QuantumTeleportation #QuantumInformation #Research
Researchers experimentally confirmed 'encrypted cloning' is noise-robust on IBM Heron-R2 using 154 qubits. Perfect qubit copies are possible if encrypted with a single-use key—refining the no-cloning theorem. Viable as a modular quantum primitive.
#QuantumComputing #QuantumInformation #Research
Extends black hole quantum info retrieval to Type III von Neumann factors (QFT regime). Uses Kosaki-Longo index & DHR superselection theory to derive charge quantization constraints from information-theoretic arguments during Hawking evaporation.
#QuantumInformation #QuantumFieldTheory #Research
Proves perfect teleportation & 2-bit superdense coding require exactly 1 ebit of shared entanglement, not genuine entanglement. Separable states can suffice. Shows no W-class state works for 3-bit superdense coding, resolving an open question.
#QuantumInformation #QuantumTeleportation #Research
New measured smooth Rényi divergences yield a tightened leftover hash lemma, improving all prior one-shot bounds for quantum privacy amplification and establishing the optimal second-order asymptotic expansion under trace distance security.
#QuantumCryptography #QuantumInformation #Research
Proves classical shadow tomography retains standard i.i.d. sample complexity—governed by the shadow norm—for fully adaptive, history-dependent quantum sources, using a truncated mean estimator and Freedman's martingale inequality.
#QuantumTomography #ClassicalShadows #QuantumInformation
A functor from order-unit spaces to probabilistic test-space models formally unifies the convex-operational and test-space frameworks for quantum theory—no generalized test spaces required—while clarifying the structure of unsharp observables.
#QuantumFoundations #QuantumInformation #Research
Proven: no two-qutrit state—pure or mixed—violates the CHSH Bell inequality under spin-1 measurements, resolving a Hanotel & Loubenets conjecture via exact spectral decomposition of a reduced two-parameter operator.
#QuantumInformation #BellInequality #Research
Proves all star-incompatible quantum measurements can certify steering-based randomness in one-sided device-independent protocols, establishing a full equivalence and providing quantitative bounds via a new star-incompatibility weight measure.
#QuantumCryptography #QuantumInformation #Research
Study of two qubits coupled to a massless scalar field shows circular motion enhances transition probability; concurrence and mutual information remain robust until relativistic regimes (RΩ≈1), where total correlations sharply degrade.
#QuantumInformation #RelativisticQuantum #Research
New mathematical inequalities yield strictly tighter bounds on entanglement distribution in multipartite quantum systems, improving upon CKW-based monogamy and polygamy relations for both tripartite and general N-party cases.
#QuantumEntanglement #QuantumInformation #Research
A reduction theorem proves stabilizer AME states in composite dimension D require them at every prime-power factor. Non-existence of AME(4,2) now blocks stabilizer AME(4,D) for all D≡2 (mod 4), ruling out infinitely many configurations.
#QuantumInformation #QuantumEntanglement #Research
Bayesian inference can be spoofed via 'prior hacking'—engineering a reference prior to preserve fixed beliefs. Proven equivalent to Schrödinger bridges, with quantum extension via the Petz map yielding a unique inference-consistent quantum bridge.
#SchrodingerBridges #QuantumInformation #Research
New 'logK complexity' measure via replica trick distinguishes genuine quantum chaos from saddle-dominated scrambling in finite-dimensional systems like LMG & Ising models, avoiding false positives in operator growth detection.
#KrylovComplexity #QuantumChaos #QuantumInformation
Classical systems provably mimic separable quantum states via quantum-like (QL) graph theory. Cartesian products of expander graphs generate composite QL states realizable in phase oscillator networks, wave multipoles, and topological circuits.
#QuantumLike #QuantumInformation #Research
New nonlocal game (1/7-SAMS) widens the entangled-classical gap for two Bell states from 1/9 to 4/35, surpassing the Mermin-Peres magic square using full 2-qubit Pauli group symmetry to advance device-independent self-testing.
#NonlocalGames #QuantumInformation #Research
Proves that the 27-qubit LU-LC conjecture counterexample is minimal: for all graph states on ≤26 qubits, LU-equivalence equals LC-equivalence. Result leverages 2-local complementation formalism and connections to triorthogonal codes.
#QuantumInformation #GraphStates #Research
Using ETH, 4-non-resonance conditions & Haar-random eigenstate substitution, researchers analytically derive volume-law scaling for late-time Local Operator Entanglement in chaotic many-body systems, validated via 1D Mixed-Field Ising Model numerics.
#QuantumChaos #QuantumInformation #Research
Goyal constructs a quantum property model from Feynman's rules reconstruction, applying Aristotle's actuality/potentiality to resolve Zeno's paradox and explain entanglement and double-slit diffraction via extended simples and complexes.
#QuantumFoundations #QuantumInformation #Research
Researchers disprove the strong spin alignment conjecture with an explicit 3-qubit counterexample, showing majorization fails without global state compatibility. A refined compatible-marginal conjecture is proposed and partially proven.
#QuantumInformation #QuantumChannels #Research
Holevo & Utkin conjecture tight lp-norm inequalities on d-dimensional hyperplanes, proving the d=3 case and numerically verifying for d≤200. Results characterize Rényi entropy extrema for quantum channels, directly advancing accessible information theory.
#QuantumInformation #RenyiEntropy #Research
Researchers show the partial trace emerges naturally from requiring consistency between the Born rule and classical probability marginalization—grounding reduced density operators in probabilistic foundations rather than ad hoc algebra.
#QuantumFoundations #QuantumInformation #Research
New proofs establish additivity of channel Rényi information (α∈[½,1)) via multiplicative completely bounded quasi-norms, and additivity of channel dispersion—advancing quantum channel capacity theory and second-order asymptotic analysis.
#QuantumInformation #QuantumChannels #Research
Proposes a unified geometric framework for 2- and 3-qubit pure states using Bloch spheres and complex concurrences, separating local from nonlocal degrees of freedom and enabling visual distinction of GHZ-type vs. W-type entanglement.
#QuantumEntanglement #QuantumInformation #Research
If you’re attending the meeting and are interested in quantum resources, or the intersection of quantum information and fundamental physics, feel free to stop by and say hello!
#APSSummit26 #APSGlobalPhysicsSummit #QuantumInformation #QuantumComputing #Physics
Using quantum tomography and BDT multivariate analysis at 13 TeV LHC, combining spin-correlation with quantum information observables (concurrence, entanglement, purity) and kinematics significantly enhances sensitivity to toponium tt̄ bound-state signals.
#Toponium #QuantumInformation #LHC
An Editors' Pick via #OPG_OpEx: Efficient quantum frequency conversion for networking on the telecom E-band https://opg.optica.org/oe/fulltext.cfm?uri=oe-34-4-6561 #QuantumInformation #NonlinearOptics💡⚛️
Which quantum resources feel most operationally meaningful in your research right now? And how has that perspective shifted as your work has evolved?
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#QuantumComputing #Physics #QuantumInformation
An Editors' Pick via #OPG_OpEx: Controlled directionality of photon emission without nonreciprocal components https://bit.ly/4aBCanI #FrequencyCombs #QuantumInformation💡⚛️
Join us at Quantum Days 2026 in Victoria BC, from February 18–20 ✨
#QuantumDays2026 #QD2026 #deeptechcanada #quantum #quantumphysics #physics #science #quantummechanics #quantumcomputing #quantumengineering #quantumtechnology #quantumfoundations #quantuminformation #quantumconference
