Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key
exchange protocol in terms of security, as it can be performed securely with uncharacterised …

Quantum secure direct communication (QSDC) can directly transmit secret messages
through quantum channel without keys. Device-independent (DI) QSDC guarantees the …

As quantum theory allows for information processing and computing tasks that otherwise are
not possible with classical systems, there is a need and use of quantum Internet beyond …

We provide several general upper bounds on the rate of a key secure against a quantum
adversary in the device-independent conference key agreement (DI-CKA) scenario. They …

The device-independent framework constitutes the most pragmatic approach to quantum
protocols that does not put any trust in their implementations. It requires all claims, about eg …

In this work, we deal with the relaxation of two central assumptions in standard locally
realistic hidden variable (LRHV) inequalities: free will in choosing measurement settings …

Quantum non-Markovianity in tripartite quantum states $\rho_ {ABC} $ represents a
correlation between systems $ A $ and $ C $ when conditioned on the system $ B $ and is …

In this work, we introduce multipartite intrinsic non-locality as a method for quantifying
resources in the multipartite scenario of device-independent (DI) conference key agreement …

Device-independent quantum key distribution (DIQKD) aims to achieve secure key
distribution with only minimal assumptions, by basing its security on the violation of Bell …

We initiate a systematic study to provide upper bounds on device-independent keys, secure
against a nonsignaling adversary (NSDI). We employ the idea of “squashing” on the secrecy …