# Quantum Bit Commitment and the Reality of the Quantum State

@article{Srikanth2018QuantumBC, title={Quantum Bit Commitment and the Reality of the Quantum State}, author={R. Srikanth}, journal={Foundations of Physics}, year={2018}, volume={48}, pages={92-109} }

Quantum bit commitment is insecure in the standard non-relativistic quantum cryptographic framework, essentially because Alice can exploit quantum steering to defer making her commitment. Two assumptions in this framework are that: (a) Alice knows the ensembles of evidence E corresponding to either commitment; and (b) system E is quantum rather than classical. Here, we show how relaxing assumption (a) or (b) can render her malicious steering operation indeterminable or inexistent, respectively… Expand

#### Paper Mentions

#### 3 Citations

Unconditionally secure quantum bit commitment based on the uncertainty principle

- Computer Science, Physics
- 2017

A simple QBC protocol is proposed which manages to evade the no-go proofs and is found that in high-dimensional systems, there exist some states which can display a chaos effect in quantum steering. Expand

Unconditionally secure quantum bit commitment based on the uncertainty principle

- Proceedings of the Royal Society A
- 2019

Unconditionally secure quantum bit commitment (QBC) was considered impossible. But the no-go proofs are based on the Hughston–Jozsa–Wootters (HJW) theorem (a.k.a. the Uhlmann theorem). Recently, it… Expand

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