4 papers
Stability of Quantum LDPC States under Local Pauli Noise
Tai-Hsuan Yang, Andrew D. Kim, Akash Vijay +1
Quantum low-density parity-check (qLDPC) codes have a canonical mixed state---the normalized projector onto the code space---that lies at the intersection of quantum error correcti…
Hierarchy of Rényi Coherent Information in Stabilizer Codes
Akash Vijay, Luis Colmenarez, Jong Yeon Lee
Rényi coherent information, a computable proxy for the von Neumann coherent information, is widely used to study mixed-state phases of matter and decodability transitions in noisy…
Information Critical Phases under Decoherence
Akash Vijay, Jong Yeon Lee
Quantum critical phases are extended regions of phase space characterized by a diverging correlation length. By analogy, we define an \emph{information critical phase} as an extend…
Holographically Emergent Gauge Theory in Symmetric Quantum Circuits
Akash Vijay, Jong Yeon Lee
We develop a novel holographic framework to study dynamical phases in random quantum circuits with a global symmetry . Viewing the circuit as a tensor network, we decompose it i…