6 papers
Rydberg atom parity gate based on dark state resonances
Sinchan Snigdha Rej, Snigdhadev Ray, Bimalendu Deb
Quantum computation (QC) and digital quantum simulation (DQS) essentially require two- or multi-qubit controlled-NOT or -phase gates. We propose an alternative pathway for QC and D…
Neutral-atom quantum computation using multi-qubit geometric gates via adiabatic passage
Sinchan Snigdha Rej, Bimalendu Deb
Adiabatic geometric phase gates offer enhanced robustness against fluctuations compared to con- ventional Rydberg blockade-based phase gates that rely on dynamical phase accumulati…
Toffoli and CNOT (n) gates in a neutral-atom platform using Rydberg coupling and dark state resonances
Sinchan Snigdha Rej, Bimalendu Deb
We propose a protocol for realizing a Toffoli gate using neutral-atom qubits in optical tweezers. Two ground-state hyperfine levels of the atoms are considered as qubit states. Our…
Dynamic structure factor of a driven-dissipative Bose-Hubbard model
Subhanka Mal, Anushree Dey, Kingshuk Adikary +1
Dynamic structure factor (DSF) is important for understanding excitations in many-body physics; it reveals information about the spectral and spatial correlations of fluctuations i…
Driven-dissipative fermionized topological phases of strongly interacting bosons
Arkajyoti Maity, Bimalendu Deb, Jan-Michael Rost
We study the optical response of a one-dimensional array of strongly nonlinear optical microcavities with alternating tunnel transmissivities, mimicking the paradigmatic Su-Schrief…
Ion-mediated interaction and controlled phase gate operation between two atomic qubits
Subhra Mudli, Subhanka Mal, Sinchan Snigdha Rej +2
We propose a toy model of ion-atom hybrid quantum system for quantum computing. We show that when two atomic qubits in two largely separated optical tweezers interact with a single…