28 citations · 114 across the 14 of their papers we have counts for
16 papers
Scalable entanglement distribution using encoded hybrid repeater chains
Stav Haldar, Saikat Guha, Don Towsley +1
Long-distance entanglement distribution requires error correction protocols to compensate for qubit decoherence in quantum memories and noise introduced during entanglement swappin…
Designing a Satellite Serviced Quantum Network Backbone for Concurrent Global Connectivity
Prateek Mantri, Stav Haldar, Albert Williams +1
Satellite-serviced quantum networks pose an architectural problem distinct from classical satellite networking: because entanglement cannot be copied, and long-lived buffering is t…
Probabilistic Cutoffs in Homogeneous Quantum Repeater Chains
Jeroen Grimbergen, Stav Haldar, Alvaro Gomez Inesta +1
We study quantum repeater chains in which entangled links between neighbouring nodes are created through heralded entanglement generation and adjacent links are swapped as soon as…
Efficient formulation of quantum network under amplitude damping noise: Highlighting benefits over its Pauli-twirled counterpart
Sudipta Mondal, Pritam Halder, Stav Haldar +1
At the heart of building a large-scale quantum internet lies the challenge of establishing long-distance entanglement using quantum repeaters, which mitigate direct transmission lo…
Bell's shadows from satellites
Stav Haldar, Rachel L. McDonald, Sage Ducoing +1
Establishing reliable quantum links between a network of satellites and ground stations is a crucial step towards realizing a wide range of satellite-based quantum protocols, inclu…
Reducing classical communication costs in multiplexed quantum repeaters using hardware-aware quasi-local policies
Stav Haldar, Pratik J. Barge, Xiang Cheng +5
Future quantum networks will have nodes equipped with multiple quantum memories, allowing for multiplexing and entanglement distillation strategies in order to increase fidelities…
A quantum-assisted master clock in the sky: global synchronization from satellites at sub-nanosecond precision
Sage Ducoing, Ivan Agullo, James E. Troupe +1
This article develops a protocol to synchronize clocks on board a network of satellites equipped with quantum resources. We show that, in such a constellation, satellites reinforce…
Synchronizing clocks via satellites using entangled photons: Effect of relative velocity on precision
Stav Haldar, Ivan Agullo, James E. Troupe
A satellite-based scheme to perform clock synchronization between ground stations spread across the globe using quantum resources was proposed in [Phys. Rev. A 107, 022615 (2023)],…
Optimizing the phase sensitivity of a Michelson interferometer with a two mode squeezed coherent input
Stav Haldar, Pratik J. Barge, Xiao-Qi Xiao +1
A Michelson-type interferometer with two-mode squeezed coherent state input is considered. Such an interferometer has a better phase sensitivity over the shot-noise limit by a fact…
Fast and reliable entanglement distribution with quantum repeaters: principles for improving protocols using reinforcement learning
Stav Haldar, Pratik J. Barge, Sumeet Khatri +1
Future quantum technologies such as quantum communication, quantum sensing, and distributed quantum computation, will rely on networks of shared entanglement between spatially sepa…
A numerical study of measurement-induced phase transitions in the Sachdev-Ye-Kitaev model
Stav Haldar, Anthony J. Brady
Continuous monitoring of an otherwise closed quantum system has been found to lead to a measurement-induced phase transition (MIPT) characterized by abrupt changes in the entanglem…
Quantum Clock Synchronization for Future NASA Deep Space Quantum Links and Fundamental Science
James Troupe, Stav Haldar, Ivan Agullo +1
The ability to measure, hold and distribute time with high precision and accuracy is a foundational capability for scientific exploration. Beyond fundamental science, time synchron…
Global Time Distribution via Satellite-Based Sources of Entangled Photons
Stav Haldar, Ivan Agullo, Anthony J. Brady +3
We propose a satellite-based scheme to perform clock synchronization between ground stations spread across the globe using quantum resources. We refer to this as a quantum clock sy…
Relativistic frame-dragging and the Hong-Ou-Mandel dip a primitive to gravitational effects in multi-photon quantum-interference
Anthony J. Brady, Stav Haldar
We investigate the Hong-Ou-Mandel (HOM) effect a two-photon quantum-interference effect in the space-time of a rotating spherical mass. In particular, we analyze a common-p…
Response of macroscopic and microscopic dynamical quantifiers to the quantum critical region
Stav Haldar, Saptarshi Roy, Titas Chanda +1
At finite temperatures, the quantum critical region (QCR) emerges as a consequence of the interplay between thermal and quantum fluctuations. We seek for suitable physical quantiti…
Multipartite entanglement at dynamical quantum phase transitions with non-uniformly spaced criticalities
Stav Haldar, Saptarshi Roy, Titas Chanda +2
We report dynamical quantum phase transition portrait in the alternating field transverse XY spin chain with Dzyaloshinskii-Moriya interaction by investigating singularities in the…