7 papers
First-Quantized Relativistic Quantum Simulation with Periodic and Dirichlet Boundary Conditions
Jeongho Bang, Timothy P. Spiller, Kyunghyun Baek +2
In this work, we present a methodology for first-quantized relativistic quantum simulation on one-dimensional finite domains under the two boundary conditions most commonly used in…
Approaching the Limit of Quantum Clock Precision
Chad Nelmes, Emanuel Schwarzhans, Tony Apollaro +2
Precise and autonomous clocks are of fundamental interest and central importance to both foundational studies and practical applications. Here, we construct a blueprint for a quant…
Relativistic Quantum Simulation under Periodic and Dirichlet Boundary Conditions: A First-Quantised Framework for Near-Term Devices
Jaewoo Joo, Timothy P. Spiller, Kyunghyun Baek +1
We present a new recipe for relativistic quantum simulation using the first quantisation approach, under periodic (PBC) and Dirichlet (DBC) boundary conditions. The wavefunction is…
Fast and efficient long-distance quantum state transfer in long-range spin- models
F. Faria, C. C. Nelmes, T. J. G. Apollaro +2
Quantum state transfer is investigated beyond the nearest-neighbour coupling scheme in long spin- linear chains. Exploiting the properties of the next-nearest neighbou…
On Post-Quantum Cryptography Authentication for Quantum Key Distribution
Juan Antonio Vieira Giestinhas, Timothy Spiller
The traditional way for a Quantum Key Distribution (QKD) user to join a quantum network is by authenticating themselves using pre-shared key material. While this approach is suffic…
State transfer analysis for linear spin chains with non-uniform on-site energies
Chad C. Nelmes, Irene D'Amico, Timothy P. Spiller
High fidelity state transfer is an important ingredient of distributed quantum information processing. We present and analyse results on perfect and quasi-perfect state transfer wi…