10 citations · 30 across the 11 of their papers we have counts for
12 papers
Can the system dynamics remain structurally non-Markovian while its experimentally accessible memory signatures disappear?
Sayan Sengupta, Anish Sharma, George Biswas +1
We investigate how unresolved quasistatic disorder in system bath coupling affects non-Markovian dynamics in spin environments. The coupling is fixed within each experimental shot…
Reduced State Stabilizer Rényi Entropy as a Probe of Quantum Phase Transitions in Frustrated J_1-J_2 Spin Models
George Biswas, Santanu Sarkar, Jun-Yi Wu +1
We investigate whether the second-order purity-corrected stabilizer Rényi entropy (SRE) of reduced two-qubit density matrices can serve as a reliable local indicator of quantum pha…
Reduced-State Stabilizer Rényi Entropy as a Probe of Quantum Criticality in the Transverse ANNNI Model and the Quantum Compass Model
Santanu Sarkar, George Biswas, Jun-Yi Wu +1
We investigate the effectiveness of the stabilizer Rényi entropy (SRE), a quantifier associated with non-stabilizer resources (quantum magic), as an indicator of quantum phase tran…
Magnetic Field Detection Using a Two-Qubit System Under Noisy Heisenberg Interaction
George Biswas, Sayan Sengupta, Anindya Biswas
We propose a method to design a magnetic field detector using a noisy two-qubit system. The system evolves under a noisy Heisenberg interaction Hamiltonian, and we investigate its…
Scalability enhancement of quantum computing under limited connectivity through distributed quantum computing
Shao-Hua Hu, George Biswas, Jun-Yi Wu
We employ quantum-volume random-circuit sampling to benchmark the two-QPU entanglement-assisted distributed quantum computing (DQC) and compare it with single-QPU quantum computing…
On Classical Simulation of Quantum Circuits Composed of Clifford Gates
George Biswas
The Gottesman-Knill theorem asserts that quantum circuits composed solely of Clifford gates can be efficiently simulated classically. This theorem hinges on the fact that Clifford…
Fidelity and Entanglement of Random Bipartite Pure States: Insights and Applications
George Biswas, Shao-Hua Hu, Jun-Yi Wu +2
We investigate the fidelity of Haar random bipartite pure states from a fixed reference quantum state and their bipartite entanglement. By plotting the fidelity and entanglement on…
Estimating phase transition of perturbed J1-J2 Heisenberg quantum chain in mixtures of ground and first excited states
Sayan Mondal, George Biswas, Ahana Ghoshal +2
We show that the nearest neighbour entanglement in a mixture of ground and first excited states - a subjacent state - of the J1-J2 Heisenberg quantum spin chain can be used as an o…
Spread and asymmetry of typical quantum coherence and their inhibition in response to glassy disorder
George Biswas, Santanu Sarkar, Anindya Biswas +1
We consider the average quantum coherences of typical redits and qudits - vectors of real and complex Hilbert spaces - with the analytical forms stemming from the symmetry of Haar-…
Shared purity and concurrence of a mixture of ground and low-lying excited states as indicators of quantum phase transitions
George Biswas, Anindya Biswas, Ujjwal Sen
We investigate the efficacy of shared purity, a measure of quantum correlation that is independent of the separability-entanglement paradigm, as a quantum phase transition indicato…
Inhibition of spread of typical bipartite and genuine multiparty entanglement in response to disorder
George Biswas, Anindya Biswas, Ujjwal Sen
The distribution of entanglement of typical multiparty quantum states is not uniform over the range of the measure utilized for quantifying the entanglement. We intend to find the…
Entanglement in first excited states of some many-body quantum spin systems: indication of quantum phase transition in finite size systems
George Biswas, Anindya Biswas
We compute concurrence, a measure of bipartite entanglement, of the first excited state of the -D Heisenberg frustrated - spin-chain and observe a sudden change in the…