Gaussian quantum information
The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …
Quantum cloning
The impossibility of perfectly copying (or cloning) an unknown quantum state is one of the
basic rules governing the physics of quantum systems. The processes that perform the …
basic rules governing the physics of quantum systems. The processes that perform the …
Quantum cloning machines and the applications
No-cloning theorem is fundamental for quantum mechanics and for quantum information
science that states an unknown quantum state cannot be cloned perfectly. However, we can …
science that states an unknown quantum state cannot be cloned perfectly. However, we can …
Using weak nonlinearity under decoherence for macroscopic entanglement generation and quantum computation
H Jeong - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
Recently, there have been several suggestions that weak Kerr nonlinearity can be used for
generation of macroscopic superpositions and entanglement and for linear optics quantum …
generation of macroscopic superpositions and entanglement and for linear optics quantum …
Experimental quantum cloning with prior partial information
When prior partial information about a state to be cloned is available, it can be cloned with a
fidelity higher than that of universal quantum cloning. We experimentally verify this intriguing …
fidelity higher than that of universal quantum cloning. We experimentally verify this intriguing …
Demonstration of Coherent-State Discrimination Using a Displacement-Controlled<? format?> Photon-Number-Resolving Detector
We experimentally demonstrate a new measurement scheme for the discrimination of two
coherent states. The measurement scheme is based on a displacement operation followed …
coherent states. The measurement scheme is based on a displacement operation followed …
New High-Efficiency Source of a Three-Photon State and its Full Characterization <?format ?>Using Quantum State Tomography
H Mikami, Y Li, K Fukuoka, T Kobayashi - Physical review letters, 2005 - APS
We propose and demonstrate a new scheme of high-efficiency generation of the three-
photon polarization-entangled W state, which is a typical three-qubit entangled state. The …
photon polarization-entangled W state, which is a typical three-qubit entangled state. The …
Optimal probabilistic cloning and purification of quantum states
J Fiurášek - Physical Review A—Atomic, Molecular, and Optical …, 2004 - APS
We investigate the probabilistic cloning and purification of quantum states. The performance
of these probabilistic operations is quantified by the average fidelity between the ideal and …
of these probabilistic operations is quantified by the average fidelity between the ideal and …
Experimental quantum forgery of quantum optical money
K Bartkiewicz, A Černoch, G Chimczak, K Lemr… - npj Quantum …, 2017 - nature.com
Unknown quantum information cannot be perfectly copied (cloned). This statement is the
bedrock of quantum technologies and quantum cryptography, including the seminal scheme …
bedrock of quantum technologies and quantum cryptography, including the seminal scheme …
Optical quantum cloning
NJ Cerf, J Fiurasek - Progress in optics, 2006 - books.google.com
The history of quantum cloning can be traced back to the controversial story of a paper by
Herbert [1982] entitled “FLASH–A superluminal communicator based upon a new kind of …
Herbert [1982] entitled “FLASH–A superluminal communicator based upon a new kind of …