Entanglement dynamics and fractional quantum state transport in the spin- triangular plaquette
arXiv:2006.14187 · doi:10.1016/j.physa.2021.125745
Abstract
The dramatic growth of research areas within the province of quantum state transmission (QST) is rapidly accelerating. An important insight to understand the process of QST can be fulfilled by considering the dynamical behavior of its entanglement content. One well-established approach to continuously transfer quantum states is utilizing spin structures. Here, from the view of entanglement propagation, we disclose the signature of fractional QST possibilities. In the present work, we proposed a form of spin- triangular plaquette whose Hamiltonian entails the spin-orbit coupling on the rungs and exchange interaction over the legs. The feature of such a system is that the time instants of QST emerge in a discrete fashion, thereby the values of exchange interactions associated with these moments behave fractionally. Importantly, it is found that for special values of magnetic interaction, QST has singularity i.e., the entanglement propagation is forbidden. In addition, the finite-size nature of this system makes it possible for us to read the nexus between time crystallinity and symmetry breaking. The development of our knowledge about time crystalline symmetry and its breaking helps us to understand the defined concept and fundamental physics of this phenomenon.
arXiv comment7 pages, 6 figures, 1 table
References in corpus (29)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Mixed State Entanglement and Quantum Error Correction
- Entanglement of a Pair of Quantum Bits
- Quantum Communication Through an Unmodulated Spin Chain
- Perfect state transfer in quantum spin networks
- Sudden Death of Entanglement
- Quantum Time Crystals
- Entanglement in the Quantum Heisenberg XY model
- Fidelity and Concurrence of conjugated states
- Entanglement dynamics and quantum state transport in spin chains
- Electrical magnetochiral effect induced by chiral spin fluctuations
- Chiral spin liquid on kagome antiferromagnet induced by Dzyaloshinskii-Moriya interaction
- Transfer of arbitrary two qubit states via a spin chain
- Topological magnon bands in the zigzag and stripy phases of antiferromagnetic honeycomb lattice
- Heisenberg Spin Bus as a Robust Transmission Line for Perfect State Transfer
- Current-induced modulation of interfacial Dzyaloshinskii-Moriya interaction
- Spin chains for two-qubit teleportation
- Many-body localization phase in a spin-driven chiral multiferroic chain
- Stochastic discrete time crystals: Entropy production and subharmonic synchronization
- Quantum state transfer in the presence of non homogeneous external potentials
- Topological phase transiton of anisotropic XY model with Dzyaloshinskii-Moriya interaction
- The quantum compass chain in a transverse magnetic field
- Role of interference in quantum state transfer through spin chains
- Dynamical pairwise entanglement and two-point correlations in the three-ligand spin-star structure
- Robust and efficient transport of two-qubit entanglement via disordered spin chains
- From fidelity to entanglement of entropy of the one-dimensional transverse-field quantum compass model
- Allowed and Forbidden Bipartite Correlations from Thermal States
- Exact dynamics of concurrence-based entanglement in a system of four spin-1/2 particles on a triangular ladder structure
- Doubly excited ferromagnetic spin-chain as a pair of coupled kicked rotors