Cornell University – Toby Berger
... information theory. 1. QUANTUM RATE-DISTORTION THEORY [1,5]. The quantum lossless source coding theorem specifies the minimum rate, called the entropy and measured in code qubits per source qubit, to which a quantum source can be compressed subject to the requirement that the source qubits can be re ...
... information theory. 1. QUANTUM RATE-DISTORTION THEORY [1,5]. The quantum lossless source coding theorem specifies the minimum rate, called the entropy and measured in code qubits per source qubit, to which a quantum source can be compressed subject to the requirement that the source qubits can be re ...
Quantum State Reconstruction From Incomplete Data
... Information encoded in a state of a quantum system The system interacts with its (large) environment The information “dilutes” into a reservoir (“equilibrates”) Where the original information goes ? Is the process reversible ? Can we recover diluted information ? Can we derive a master equation? Wha ...
... Information encoded in a state of a quantum system The system interacts with its (large) environment The information “dilutes” into a reservoir (“equilibrates”) Where the original information goes ? Is the process reversible ? Can we recover diluted information ? Can we derive a master equation? Wha ...
Research Status, Winter 2009 - Cove
... • 15 is a trivial example, how about a 128 bit number? • We need 384 qubits (128 * 3) to do the quantum part of the algorithm. – The quantum operations that are performed are done once, just on more qubits. Similar to adding two integers: same technique, more bits. ...
... • 15 is a trivial example, how about a 128 bit number? • We need 384 qubits (128 * 3) to do the quantum part of the algorithm. – The quantum operations that are performed are done once, just on more qubits. Similar to adding two integers: same technique, more bits. ...
After a 30-year struggle to harness quantum weirdness for
... tasks. They also need to remain in their quantum states for much longer than it takes to perform a computing step — typically a microsecond or so. To achieve those goals, physicists are pursuing a two-fold strategy: extending the life of qubits and reducing how often they go wrong, and devising algo ...
... tasks. They also need to remain in their quantum states for much longer than it takes to perform a computing step — typically a microsecond or so. To achieve those goals, physicists are pursuing a two-fold strategy: extending the life of qubits and reducing how often they go wrong, and devising algo ...
Computing prime factors with a Josephson phase qubit quantum
... In this experiment, we scaled-up from an architecture initially implemented with two qubits and three resonators [7] to a nine-element quantum processor (QuP) capable of realizing rapid entanglement and a compiled version of Shor’s algorithm. The device is composed of four phase qubits and five supe ...
... In this experiment, we scaled-up from an architecture initially implemented with two qubits and three resonators [7] to a nine-element quantum processor (QuP) capable of realizing rapid entanglement and a compiled version of Shor’s algorithm. The device is composed of four phase qubits and five supe ...
Lecture 3
... industry about that…) I.e., there is a unitary transformation Un: Un|xi|0i = |xi|xi for all x2{0,1}n But then by linearity U1 1/2.5(|0i+|1i) |0i= 1/21/2 (|00i+|11i) 1/21/2(|0i+|1i) times 1/2.5(|0i+|1i) ...
... industry about that…) I.e., there is a unitary transformation Un: Un|xi|0i = |xi|xi for all x2{0,1}n But then by linearity U1 1/2.5(|0i+|1i) |0i= 1/21/2 (|00i+|11i) 1/21/2(|0i+|1i) times 1/2.5(|0i+|1i) ...
