7 papers · 1 filter
Auxiliary Schmidt Rank as a Resource for Photonic Bell Measurements
Pradip Laha, Peter van Loock
In quantum communication and fusion-based quantum computation, photonic Bell measurements are fundamentally limited when only passive linear optics is employed. While for qubits, s…
Bright-mode parity synthesis for bosonic state transfer through a single ancilla
Pradip Laha, Peter van Loock
Bosonic modes provide hardware-efficient quantum memories and logical registers, including highly non-Gaussian encoded states, but transferring finite-dimensional bosonic states th…
Squeezing-enhanced Pairwise Fusion of Photonic Qudits
Pradip Laha, Peter van Loock
Pairwise fusion gates are linear-optical measurements that herald Bell projections onto two-rail subspaces of two \(d\)-rail single-photon qudits. Without ancillary input photons,…
Arbitrary high-fidelity binomial codes from multiphoton spin-boson interactions
Pradip Laha, Peter van Loock
Encoding a qubit in the continuous degrees of freedom of a quantum system, such as bosonic modes, is a powerful alternative to modern quantum error correction (QEC). Among the most…
Tripartite multiphoton Jaynes-Cummings model: Analytical solution and Wigner nonclassicalities
Pradip Laha, P. A. Ameen Yasir, Peter van Loock
We investigate a generic tripartite quantum system featuring a single qubit interacting concurrently with two quantized harmonic oscillators via nonlinear multiphoton Jaynes-Cummin…
Genuine non-Gaussian entanglement of light and quantum coherence for an atom from noisy multiphoton spin-boson interactions
Pradip Laha, P. A. Ameen Yasir, Peter van Loock
Harnessing entanglement and quantum coherence plays a central role in advancing quantum technologies. In quantum optical light-atom platforms, these two fundamental resources are o…