The wave function as a true ensemble
JR Hance, S Hossenfelder - Proceedings of the Royal …, 2022 - royalsocietypublishing.org
In quantum mechanics, the wave function predicts probabilities of possible measurement
outcomes, but not which individual outcome is realized in each run of an experiment. This …
outcomes, but not which individual outcome is realized in each run of an experiment. This …
Modification of counterfactual communication protocols that eliminates weak particle traces
Y Aharonov, L Vaidman - Physical Review A, 2019 - APS
The possibility to communicate between spatially separated regions, without even a single
photon passing between the two parties, is an amazing quantum phenomenon. The …
photon passing between the two parties, is an amazing quantum phenomenon. The …
How quantum is quantum counterfactual communication?
Abstract Quantum Counterfactual Communication is the recently-proposed idea of using
quantum physics to send messages between two parties, without any matter/energy transfer …
quantum physics to send messages between two parties, without any matter/energy transfer …
Counterfactual ghost imaging
We give a protocol for ghost imaging in a way that is always counterfactual—while imaging
an object, no light interacts with that object. This extends the idea of counterfactuality beyond …
an object, no light interacts with that object. This extends the idea of counterfactuality beyond …
Deterministic teleportation and universal computation without particle exchange
Teleportation is a cornerstone of quantum technologies, and has played a key role in the
development of quantum information theory. Pushing the limits of teleportation is therefore of …
development of quantum information theory. Pushing the limits of teleportation is therefore of …
Three approaches for analyzing the counterfactuality of counterfactual protocols
Counterfactual communication protocols are analyzed using three approaches: a classical
argument, the weak trace criterion, and the Fisher information criterion. It is argued that the …
argument, the weak trace criterion, and the Fisher information criterion. It is argued that the …
Exchange-free computation on an unknown qubit at a distance
We present a way of directly manipulating an arbitrary qubit, without the exchange of any
particles. This includes as an application the exchange-free preparation of an arbitrary …
particles. This includes as an application the exchange-free preparation of an arbitrary …
Analysis of counterfactuality of counterfactual communication protocols
L Vaidman - Physical Review A, 2019 - APS
Counterfactual communication, ie, a communication without particles traveling in the
transmission channel, is a bizarre quantum effect. Starting from interaction-free …
transmission channel, is a bizarre quantum effect. Starting from interaction-free …
Trace-free counterfactual communication with a nanophotonic processor
I Alonso Calafell, T Strömberg… - npj Quantum …, 2019 - nature.com
In standard communication information is carried by particles or waves. Counterintuitively, in
counterfactual communication particles and information can travel in opposite directions …
counterfactual communication particles and information can travel in opposite directions …
Is the dynamical quantum Cheshire cat detectable?
We explore how one might detect the dynamical quantum Cheshire cat proposed by
Aharonov et al We show that, in practice, we need to bias the initial state by …
Aharonov et al We show that, in practice, we need to bias the initial state by …