swap_horiz W state Alternatives

1

qubit

A qubit is a fundamental unit of quantum information leveraging quantum mechanics. It differs from a classical bit by ex...

Computing Information State Two Level

9.4 Excellent

2

quantum teleportation

Quantum teleportation is a process enabling the transfer of a quantum state between two particles. It relies on the phen...

Communication Protocol Entanglement State Transfer

9.4 Excellent

3

density matrix

The density matrix is a mathematical tool used in quantum mechanics to represent the state of a quantum system. It accou...

Mixed Formalism State Open Systems

9.3 Excellent

4

CHSH inequality

The CHSH inequality is a mathematical constraint derived from Bell’s theorem. It defines an upper limit for correlations...

Foundation Entanglement Correlation Bell Test

9.3 Excellent

5

Bell state

A Bell state describes a fundamental property in quantum mechanics involving the linked behavior of multiple subatomic p...

Entanglement State Two Qubit Basis

9.2 Excellent

6

Bloch sphere

The Bloch sphere provides a visual understanding of a qubit’s quantum state. It represents the possible states of the qu...

Visualization State Qubit Two Level

9.1 Excellent

7

stabilizer formalism

Stabilizer formalism provides a mathematical framework for representing and manipulating quantum states. It utilizes ten...

Error Correction Formalism State Clifford

9.0 Excellent

8

GHZ state

A Greenberger–Horne–Zeilinger (GHZ) state is a specific entangled quantum state of three or more particles where measuri...

Foundation Entanglement State Multipartite

8.7 Great

9

coherent state

A coherent state is a specific quantum state of a harmonic oscillator exhibiting properties remarkably similar to classi...

Optics Oscillator State Semiclassical

8.7 Great

10

superdense coding

Superdense coding allows two parties with entangled photons to transmit two classical bits of information using just one...

Communication Protocol Entanglement Information

8.7 Great

11

Wigner function

The Wigner function represents a quasi-probability distribution in phase space, offering a way to analyze quantum states...

Formalism Phase Space State Quasiprobability

8.6 Great

12

squeezed state

A squeezed state is a quantum mechanical state where the uncertainty in one observable, like position or momentum, is re...

Optics Noise State Continuous Variable

8.5 Great

13

cat state

Cat state, derived from Schrödinger's thought experiment, describes a quantum system existing in multiple contradictory...

Optics Oscillator State Superposition

8.3 Great

14

E91 protocol

E91 is a quantum entanglement protocol demonstrating non-local realism violation; it uses three entangled photons and me...

History Cryptography Entanglement Qkd

8.2 Great

15

cluster state

A cluster state is a specific entangled multiparticle quantum state where each qubit's value depends on the values of it...

Computing Measurement Entanglement Graph State

8.1 Great

16

Fock state

A Fock state in quantum mechanics represents a specific, well-defined eigenstate of the number operator, signifying a fi...

Optics Photons State Number State

8.0 Great

17

graph state

A graph state is a specific entangled quantum state where qubits are connected by edges representing entanglement, formi...

Computing Stabilizer Entanglement State

7.9 Good

18

Husimi Q function

The Husimi Q function, a quasiprobability distribution in quantum mechanics, smooths the Wigner function to ensure non-n...

Optics Phase Space State Quasiprobability

7.7 Good

19

quantum secret sharing

Quantum secret sharing distributes a secret among multiple parties using entangled photons; reconstructing the original...

Security Protocol Cryptography Multipartite

7.6 Good

20

NOON state

NOON states are entangled quantum systems where both possibilities of a property (like spin) exist simultaneously until...

Optics Entanglement Metrology State

7.3 Good