Bose originated (with Marletto and Vedral) the Bose-Marletto-Vedral (BMV) proposal to witness whether gravity is fundamentally quantum, by testing for gravitationally-induced entanglement between two spatially superposed masses using matter-wave (Stern-Gerlach) interferometry -- an idea he co-developed with quantum-sensing experimentalists including Andrew Geraci (Northwestern) and Peter Barker (UCL). He continues to develop the theory of these quantum-gravity-induced entanglement of masses (QGEM) tests, including decoherence mitigation and multi-qubit witnessing schemes, positioning nanocrystal/levitated-mass interferometry as a route to laboratory tests of quantum gravity.

Vedral leads the Quantum Devices and Biosystems group, working at the intersection of quantum information and biology. Research themes include: (1) quantum effects in living systems — studying entanglement and non-classicality in biological organisms such as tardigrades placed in quantum superposition inside superconducting qubits; (2) BMV-type experiments to test whether gravity is a quantum field by measuring gravity-mediated entanglement between two massive quantum superpositions; (3) theoretical frameworks for witnessing quantum effects in complex macroscopic systems. While primarily theoretical, the group actively collaborates with and directs experiments. Borderline: included as the group formally aims for experimental demonstrations of quantum effects in living systems.