Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Long-Term Memory01:18

Long-Term Memory

591
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
591
Understanding Memory01:19

Understanding Memory

1.3K
Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
1.3K
System of Memory01:23

System of Memory

7.1K
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
7.1K
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

541
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
541
Storage01:23

Storage

337
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
337
Sensory Memory01:14

Sensory Memory

576
Sensory memory captures information from the environment in its original form for a very brief duration, just long enough to be exposed to visual, auditory, and other senses. This type of memory is detailed and rich but quickly lost unless certain strategies are employed to transfer it into short-term or long-term memory. Sensory information is continuously bombarding the human brain, yet only a small fraction is absorbed, as most of it does not significantly impact daily life. For instance,...
576

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Metropolitan-scale ion-photon entanglement via a quantum network node with hybrid multiplexing enhancements.

Nature communications·2025
Same author

Quantum tomography of a third-order exceptional point in a dissipative trapped ion.

Nature communications·2025
Same author

Realization of a Crosstalk-Free Two-Ion Node for Long-Distance Quantum Networking.

Physical review letters·2025
Same author

Individually addressed entangling gates in a two-dimensional ion crystal.

Nature communications·2024
Same author

A site-resolved two-dimensional quantum simulator with hundreds of trapped ions.

Nature·2024
Same author

Realizing Synthetic Dimensions and Artificial Magnetic Flux in a Trapped-Ion Quantum Simulator.

Physical review letters·2024
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Related Experiment Video

Updated: Jan 8, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.1K

Long-Time Storage of a Qubit Encoded in Decoherence-Free Subspace Using a Dual-Type Quantum Memory.

Y-L Xu1, L Zhang1, C Zhang2

  • 1Tsinghua University, Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Beijing 100084, People's Republic of China.

Physical Review Letters
|December 19, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed a multi-ion quantum memory using a cryogenic trap, achieving over two hours of coherence time for entangled states. This advancement overcomes limitations of previous single-qubit systems for quantum information storage.

More Related Videos

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K

Related Experiment Videos

Last Updated: Jan 8, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

13.1K
Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

9.6K

Area of Science:

  • Quantum Information Science
  • Atomic, Molecular, and Optical Physics
  • Quantum Computing and Networking

Background:

  • Quantum memory is crucial for quantum computation, networks, and metrology.
  • Previous dual-species quantum memory achieved ~1 hour coherence but was limited to single qubits due to ion position hopping.
  • Room-temperature traps and different ion masses hindered scalability and stability.

Purpose of the Study:

  • To demonstrate a scalable multi-ion quantum memory with extended coherence times.
  • To overcome the limitations of single-qubit storage in dual-species quantum memory systems.
  • To explore the potential of cryogenic traps and same-mass ions for improved quantum memory performance.

Main Methods:

  • Implemented a dual-type ion trap scheme in a cryogenic environment.
  • Utilized sympathetic cooling with a coolant ion for memory ions of the same mass.
  • Encoded qubits in decoherence-free two-ion entangled states.
  • Applied error correction for dominant leakage errors.

Main Results:

  • Achieved a multi-ion quantum memory with a coherence time exceeding two hours.
  • Demonstrated qubit storage in entangled states within a decoherence-free subspace.
  • Overcame ion position hopping issues by using a cryogenic trap and same-mass ions.
  • Eliminated the need for an ultrastable frequency reference for the stored qubit.

Conclusions:

  • The cryogenic dual-type scheme offers a scalable and stable platform for multi-ion quantum memory.
  • This work significantly advances the coherence time and storage capacity for quantum information.
  • The developed quantum memory is a promising building block for future quantum technologies.