Quantum Information Capsule and Information Delocalization by Entanglement in Multiple-qubit Systems
arXiv:1811.03772 · doi:10.1016/j.physleta.2019.01.036
Abstract
Where do entangled multiple-qubit systems store information? For information injected into a qubit, this question is nontrivial and interesting since the entanglement delocalizes the information. So far, a common picture is that of a qubit and its purification partner sharing the information quantum mechanically. Here, we introduce a new picture of a single qubit in the correlation space, referred to as quantum information capsule (QIC), confining the information perfectly. This picture is applicable for the entangled multiple-qubit system in an arbitrary state. Unlike the partner picture, in the QIC picture, by swapping the single-body state, leaving other subsystems untouched, the whole information can be retrieved out of the system. After the swapping process, no information remains in the system.
arXiv comment13 pages, 3 figures
References in corpus (25)
- The Quantum Internet
- A bound on chaos
- Average Entropy of a Subsystem
- Information in Black Hole Radiation
- The information paradox: A pedagogical introduction
- Soft Hair on Black Holes
- Chaos in quantum channels
- A Single-Atom Quantum Memory
- Quantum Storage of Orbital Angular Momentum Entanglement in an Atomic Ensemble
- Authentication of Quantum Messages
- Novel schemes for measurement-based quantum computation
- Single-Photon-Level Quantum Image Memory Based on Cold Atomic Ensembles
- A solid state spin-wave quantum memory for time-bin qubits
- Quantum information cannot be completely hidden in correlations: implications for the black-hole information paradox
- Coherent spin control at the quantum level in an ensemble-based optical memory
- Black holes, quantum information, and unitary evolution
- Masking quantum information is impossible
- Storage and Retrieval of a Microwave Field in a Spin Ensemble
- Diffeomorphism on Horizon as an Asymptotic Isometry of Schwarzschild Black Hole
- Time-Dependent Schrodinger Equation for Black Hole Evaporation: no Information Loss
- Information conservation is fundamental: recovering the lost information in Hawking radiation
- Quantum computation in correlation space and extremal entanglement
- Quantum Purity at a Small Price: Easing a Black Hole Paradox
- Soft-Hair-Enhanced Entanglement Beyond Page Curves in a Black-hole Evaporation Qubit Model
- Correlations of observables in chaotic states of macroscopic quantum systems
Cited by in corpus (6)
- Probabilistic and Approximate Masking of Quantum Information
- Superadditivity of channel capacity through quantum fields
- Decoding Quantum Field Theory with Machine Learning
- Entanglement partners and monogamy in de Sitter universes
- Quantum Information Capsule in Multiple-Qudit Systems and Continuous-Variable Systems
- Strong Chaos of Fast Scrambling Yields Order: Emergence of Decoupled Quantum Information Capsules