30 citations · 76 across the 8 of their papers we have counts for
8 papers
Holography as a resource for non-local quantum computation
Kfir Dolev, Sam Cree
If two parties share sufficient entanglement, they are able to implement any channel on a shared bipartite state via non-local quantum computation -- a protocol consisting of local…
Non-local computation of quantum circuits with small light cones
Kfir Dolev, Sam Cree
The task of non-local quantum computation requires implementation of a unitary on qubits between two parties with only one round of communication, ideally with minimal pre-shar…
Gauging the bulk: generalized gauging maps and holographic codes
Kfir Dolev, Vladimir Calvera, Sam Cree +1
Gauging is a general procedure for mapping a quantum many-body system with a global symmetry to one with a local gauge symmetry. We consider a generalized gauging map that does not…
Approximate Petz recovery from the geometry of density operators
Sam Cree, Jonathan Sorce
We derive a new bound on the effectiveness of the Petz map as a universal recovery channel in approximate quantum error correction using the second sandwiched Rényi relative entrop…
Fault-tolerant logical gates in holographic stabilizer codes are severely restricted
Sam Cree, Kfir Dolev, Vladimir Calvera +1
We evaluate the usefulness of holographic stabilizer codes for practical purposes by studying their allowed sets of fault-tolerantly implementable gates. We treat them as subsystem…
Geometric conditions for saturating the data processing inequality
Sam Cree, Jonathan Sorce
The data processing inequality (DPI) is a scalar inequality satisfied by distinguishability measures on density matrices. For some distinguishability measures, saturation of the sc…
A fidelity measure for quantum states based on the matrix geometric mean
Sam Cree, Jamie Sikora
Uhlmann's fidelity function is one of the most widely used similarity measures in quantum theory. One definition of this function is that it is the minimum classical fidelity assoc…
Can the fluctuations of the quantum vacuum solve the cosmological constant problem?
Samuel S. Cree, Tamara M. Davis, Timothy C. Ralph +3
The cosmological constant problem arises because the magnitude of vacuum energy density predicted by quantum mechanics is about 120 orders of magnitude larger than the value implie…